annotate src/master/login-process.c @ 4649:a3d6a3462745 HEAD

Send inode number in login requests and verify that they match.
author Timo Sirainen <tss@iki.fi>
date Wed, 11 Oct 2006 15:17:27 +0300
parents f5772851ac91
children 2fe8f6a0bc5b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Copyright (C) 2002 Timo Sirainen */
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2
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3 #include "common.h"
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4 #include "ioloop.h"
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5 #include "network.h"
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6 #include "ostream.h"
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7 #include "fdpass.h"
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8 #include "fd-close-on-exec.h"
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9 #include "env-util.h"
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10 #include "restrict-access.h"
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11 #include "restrict-process-size.h"
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12 #include "login-process.h"
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13 #include "auth-process.h"
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14 #include "mail-process.h"
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15 #include "master-login-interface.h"
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16 #include "log.h"
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17 #include "ssl-init.h"
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18
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19 #include <unistd.h>
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20 #include <syslog.h>
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21 #include <sys/stat.h>
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22
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23 struct login_process {
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24 struct login_group *group;
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25 struct login_process *prev_prelogin, *next_prelogin;
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26 int refcount;
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27
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28 pid_t pid;
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29 int fd;
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30 struct io *io;
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31 struct ostream *output;
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32 enum master_login_state state;
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33
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34 unsigned int initialized:1;
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35 unsigned int destroyed:1;
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36 unsigned int inetd_child:1;
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37 };
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38
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39 struct login_auth_request {
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40 struct login_process *process;
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41 unsigned int tag;
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42
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43 unsigned int login_tag;
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44 int fd;
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45
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46 struct ip_addr local_ip, remote_ip;
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47 };
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48
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49 static unsigned int auth_id_counter, login_pid_counter;
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50 static struct timeout *to;
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51 static struct io *io_listen;
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52 static bool logins_stalled = FALSE;
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53
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54 static struct hash_table *processes;
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55 static struct login_group *login_groups;
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56
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57 static void login_process_destroy(struct login_process *p);
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58 static void login_process_unref(struct login_process *p);
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59 static bool login_process_init_group(struct login_process *p);
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60 static void login_processes_start_missing(void *context);
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61
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62 static void login_group_create(struct settings *set)
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63 {
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64 struct login_group *group;
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65
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66 group = i_new(struct login_group, 1);
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67 group->refcount = 1;
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68 group->set = set;
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69 group->process_type = set->protocol == MAIL_PROTOCOL_IMAP ?
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70 PROCESS_TYPE_IMAP : PROCESS_TYPE_POP3;
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72 group->next = login_groups;
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73 login_groups = group;
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74 }
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75
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76 static void login_group_unref(struct login_group *group)
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77 {
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78 i_assert(group->refcount > 0);
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79
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80 if (--group->refcount > 0)
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81 return;
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82
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83 i_free(group);
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84 }
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85
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86 void auth_master_callback(const char *user, const char *const *args,
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87 void *context)
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88 {
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89 struct login_auth_request *request = context;
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90 struct master_login_reply master_reply;
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91 ssize_t ret;
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92
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93 if (user == NULL)
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94 master_reply.success = FALSE;
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95 else {
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96 struct login_group *group = request->process->group;
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97
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98 t_push();
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99 master_reply.success =
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100 create_mail_process(group->process_type, group->set,
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101 request->fd, &request->local_ip,
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102 &request->remote_ip, user, args,
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103 FALSE);
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104 t_pop();
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105 }
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106
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107 /* reply to login */
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108 master_reply.tag = request->login_tag;
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109
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110 ret = o_stream_send(request->process->output, &master_reply,
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111 sizeof(master_reply));
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112 if (ret != sizeof(master_reply)) {
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113 if (ret >= 0) {
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114 i_warning("Login process %s transmit buffer full, "
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115 "killing..", dec2str(request->process->pid));
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116 }
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117 login_process_destroy(request->process);
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118 }
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119
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120 if (close(request->fd) < 0)
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121 i_error("close(mail client) failed: %m");
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122 login_process_unref(request->process);
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123 i_free(request);
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124 }
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125
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126 static void process_remove_from_prelogin_lists(struct login_process *p)
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127 {
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128 if (p->state != LOGIN_STATE_FULL_PRELOGINS)
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129 return;
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130
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131 if (p->prev_prelogin == NULL)
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132 p->group->oldest_prelogin_process = p->next_prelogin;
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133 else
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134 p->prev_prelogin->next_prelogin = p->next_prelogin;
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135
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136 if (p->next_prelogin == NULL)
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137 p->group->newest_prelogin_process = p->prev_prelogin;
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138 else
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139 p->next_prelogin->prev_prelogin = p->prev_prelogin;
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140
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141 p->prev_prelogin = p->next_prelogin = NULL;
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142 }
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parents: 4388
diff changeset
143
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
144 static void process_mark_nonlistening(struct login_process *p,
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parents: 4388
diff changeset
145 enum master_login_state new_state)
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
146 {
4538
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
147 if (p->group == NULL)
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diff changeset
148 return;
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
149
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diff changeset
150 if (p->state == LOGIN_STATE_LISTENING)
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diff changeset
151 p->group->listening_processes--;
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diff changeset
152
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
153 if (new_state == LOGIN_STATE_FULL_PRELOGINS) {
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diff changeset
154 /* add to prelogin list */
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diff changeset
155 i_assert(p->state != new_state);
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diff changeset
156
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
157 p->prev_prelogin = p->group->newest_prelogin_process;
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parents: 4388
diff changeset
158 if (p->group->newest_prelogin_process == NULL)
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diff changeset
159 p->group->oldest_prelogin_process = p;
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diff changeset
160 else
9d9e72374164 Fixes to login process handling, especially with
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parents: 4388
diff changeset
161 p->group->newest_prelogin_process->next_prelogin = p;
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diff changeset
162 p->group->newest_prelogin_process = p;
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parents: 4388
diff changeset
163 } else {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
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diff changeset
164 process_remove_from_prelogin_lists(p);
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
165 }
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
166 }
9d9e72374164 Fixes to login process handling, especially with
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parents: 4388
diff changeset
167
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
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diff changeset
168 static void process_mark_listening(struct login_process *p)
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parents: 4388
diff changeset
169 {
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diff changeset
170 if (p->group == NULL)
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diff changeset
171 return;
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
172
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
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173 if (p->state != LOGIN_STATE_LISTENING)
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diff changeset
174 p->group->listening_processes++;
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175
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
176 process_remove_from_prelogin_lists(p);
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Timo Sirainen <tss@iki.fi>
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177 }
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
178
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diff changeset
179 static void
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Timo Sirainen <tss@iki.fi>
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180 login_process_set_state(struct login_process *p, enum master_login_state state)
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diff changeset
181 {
9d9e72374164 Fixes to login process handling, especially with
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parents: 4388
diff changeset
182 if (state == p->state || state > LOGIN_STATE_COUNT ||
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Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
183 (state < p->state && p->group->set->login_process_per_connection)) {
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184 i_error("login: tried to change state %d -> %d "
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Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
185 "(if you can't login at all, see src/lib/fdpass.c)",
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
186 p->state, state);
4640
f5772851ac91 If login process sends wrong state information, restart it.
Timo Sirainen <tss@iki.fi>
parents: 4632
diff changeset
187 login_process_destroy(p);
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
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diff changeset
188 return;
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
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parents: 613
diff changeset
189 }
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
190
4538
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
191 if (state == LOGIN_STATE_LISTENING) {
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
192 process_mark_listening(p);
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Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
193 } else {
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diff changeset
194 process_mark_nonlistening(p, state);
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diff changeset
195 }
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
196
4538
9d9e72374164 Fixes to login process handling, especially with
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diff changeset
197 p->state = state;
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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198 }
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
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parents: 613
diff changeset
199
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
200 static void login_process_groups_create(void)
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
201 {
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
202 struct server_settings *server;
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
203
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
204 for (server = settings_root; server != NULL; server = server->next) {
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
205 if (server->imap != NULL)
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
206 login_group_create(server->imap);
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
207 if (server->pop3 != NULL)
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
208 login_group_create(server->pop3);
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
209 }
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
210 }
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
211
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
212 static struct login_group *
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
213 login_group_process_find(const char *name, enum mail_protocol protocol)
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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214 {
af685269ead0 login: Wait until we're connected to auth process before executing command
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215 struct login_group *group;
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216
1610
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217 if (login_groups == NULL)
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
218 login_process_groups_create();
1275
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219
af685269ead0 login: Wait until we're connected to auth process before executing command
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220 for (group = login_groups; group != NULL; group = group->next) {
1610
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diff changeset
221 if (strcmp(group->set->server->name, name) == 0 &&
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
222 group->set->protocol == protocol)
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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223 return group;
af685269ead0 login: Wait until we're connected to auth process before executing command
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224 }
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225
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
226 return NULL;
af685269ead0 login: Wait until we're connected to auth process before executing command
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227 }
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
228
3863
55df57c028d4 Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents: 3692
diff changeset
229 static bool login_process_read_group(struct login_process *p)
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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230 {
af685269ead0 login: Wait until we're connected to auth process before executing command
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231 struct login_group *group;
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
232 const char *name, *proto;
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
233 char buf[256];
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
234 enum mail_protocol protocol;
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
235 unsigned int len;
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
236 ssize_t ret;
af685269ead0 login: Wait until we're connected to auth process before executing command
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237
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diff changeset
238 /* read length */
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
239 ret = read(p->fd, buf, 1);
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
240 if (ret != 1)
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
241 len = 0;
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
242 else {
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
243 len = buf[0];
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
244 if (len >= sizeof(buf)) {
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
245 i_error("login: Server name length too large");
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
246 return FALSE;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
247 }
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
248
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
249 ret = read(p->fd, buf, len);
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
250 }
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
251
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
252 if (ret < 0)
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
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diff changeset
253 i_error("login: read() failed: %m");
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
254 else if (len == 0 || (size_t)ret != len)
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
255 i_error("login: Server name wasn't sent");
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
256 else {
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
257 name = t_strndup(buf, len);
3607
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
258 proto = strchr(name, '/');
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
259 if (proto == NULL) {
3607
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
260 proto = name;
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
261 name = "default";
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
262 } else {
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
263 name = t_strdup_until(name, proto++);
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
264 }
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
265
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
266 if (strcmp(proto, "imap") == 0)
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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parents: 1506
diff changeset
267 protocol = MAIL_PROTOCOL_IMAP;
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
268 else if (strcmp(proto, "pop3") == 0)
4353
3e542f308cb5 Starting pop3 processes from inetd started actually imap processes after
Timo Sirainen <tss@iki.fi>
parents: 4197
diff changeset
269 protocol = MAIL_PROTOCOL_POP3;
1610
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diff changeset
270 else {
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
271 i_error("login: Unknown protocol '%s'", proto);
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
272 return FALSE;
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
273 }
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
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diff changeset
274
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
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diff changeset
275 group = login_group_process_find(name, protocol);
1275
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diff changeset
276 if (group == NULL) {
1610
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diff changeset
277 i_error("login: Unknown server name '%s'", name);
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
278 return FALSE;
af685269ead0 login: Wait until we're connected to auth process before executing command
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parents: 1273
diff changeset
279 }
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
280
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
281 p->group = group;
af685269ead0 login: Wait until we're connected to auth process before executing command
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diff changeset
282 return login_process_init_group(p);
af685269ead0 login: Wait until we're connected to auth process before executing command
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parents: 1273
diff changeset
283 }
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
284 return FALSE;
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
285 }
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
286
4649
a3d6a3462745 Send inode number in login requests and verify that they match.
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287 static int
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288 login_read_request(struct login_process *p, struct master_login_request *req,
a3d6a3462745 Send inode number in login requests and verify that they match.
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289 int *client_fd_r)
a3d6a3462745 Send inode number in login requests and verify that they match.
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290 {
a3d6a3462745 Send inode number in login requests and verify that they match.
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291 struct stat st;
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292 ssize_t ret;
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293
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294 *client_fd_r = -1;
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295
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296 ret = fd_read(p->fd, req, sizeof(*req), client_fd_r);
a3d6a3462745 Send inode number in login requests and verify that they match.
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297 if (ret >= (ssize_t)sizeof(req->version) &&
a3d6a3462745 Send inode number in login requests and verify that they match.
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298 req->version != MASTER_LOGIN_PROTOCOL_VERSION) {
a3d6a3462745 Send inode number in login requests and verify that they match.
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299 i_error("login: Protocol version mismatch "
a3d6a3462745 Send inode number in login requests and verify that they match.
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300 "(mixed old and new binaries?)");
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301 return -1;
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
parents: 4640
diff changeset
302 }
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303
a3d6a3462745 Send inode number in login requests and verify that they match.
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diff changeset
304 if (ret != sizeof(*req)) {
a3d6a3462745 Send inode number in login requests and verify that they match.
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parents: 4640
diff changeset
305 if (ret == 0) {
a3d6a3462745 Send inode number in login requests and verify that they match.
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306 /* disconnected, ie. the login process died */
a3d6a3462745 Send inode number in login requests and verify that they match.
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307 } else if (ret > 0) {
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308 /* request wasn't fully read */
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309 i_error("login: fd_read() returned partial %d", ret);
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310 } else {
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311 if (errno == EAGAIN)
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312 return 0;
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313
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314 i_error("login: fd_read() failed: %m");
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315 }
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316 return -1;
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317 }
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318
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319 if (req->ino == (ino_t)-1) {
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320 if (*client_fd_r != -1) {
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321 i_error("login: Notification request sent "
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322 "a file descriptor");
a3d6a3462745 Send inode number in login requests and verify that they match.
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323 return -1;
a3d6a3462745 Send inode number in login requests and verify that they match.
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324 }
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325 return 1;
a3d6a3462745 Send inode number in login requests and verify that they match.
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326 }
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327
a3d6a3462745 Send inode number in login requests and verify that they match.
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328 if (*client_fd_r == -1) {
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diff changeset
329 i_error("login: Login request missing a file descriptor");
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330 return -1;
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331 }
a3d6a3462745 Send inode number in login requests and verify that they match.
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332
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
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diff changeset
333 if (fstat(*client_fd_r, &st) < 0) {
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334 i_error("login: fstat(mail client) failed: %m");
a3d6a3462745 Send inode number in login requests and verify that they match.
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335 return -1;
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
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336 }
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337
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Timo Sirainen <tss@iki.fi>
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diff changeset
338 if (st.st_ino != req->ino) {
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Timo Sirainen <tss@iki.fi>
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diff changeset
339 i_error("login: Login request inode mismatch: %s != %s",
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340 dec2str(st.st_ino), dec2str(req->ino));
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341 return -1;
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Timo Sirainen <tss@iki.fi>
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diff changeset
342 }
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diff changeset
343 return 1;
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344 }
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345
1036
f782b3319553 Removed useless parameters from io_callback_t and timeout_callback_t.
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diff changeset
346 static void login_process_input(void *context)
0
3b1985cbc908 Initial revision
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347 {
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
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348 struct login_process *p = context;
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
349 struct auth_process *auth_process;
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
350 struct login_auth_request *authreq;
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fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
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parents: 1000
diff changeset
351 struct master_login_request req;
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
352 int client_fd;
af685269ead0 login: Wait until we're connected to auth process before executing command
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parents: 1273
diff changeset
353 ssize_t ret;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
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diff changeset
354
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
355 if (p->group == NULL) {
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
356 /* we want to read the group */
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
357 if (!login_process_read_group(p))
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
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diff changeset
358 login_process_destroy(p);
af685269ead0 login: Wait until we're connected to auth process before executing command
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parents: 1273
diff changeset
359 return;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
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diff changeset
360 }
0
3b1985cbc908 Initial revision
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diff changeset
361
4649
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diff changeset
362 ret = login_read_request(p, &req, &client_fd);
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diff changeset
363 if (ret == 0)
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
parents: 4640
diff changeset
364 return;
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
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diff changeset
365 if (ret < 0) {
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
parents: 4640
diff changeset
366 if (client_fd != -1) {
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
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diff changeset
367 if (close(client_fd) < 0)
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diff changeset
368 i_error("login: close(mail client) failed: %m");
a3d6a3462745 Send inode number in login requests and verify that they match.
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parents: 4640
diff changeset
369 }
2779
1fd55b4341b9 Added version to login <-> master communication as well.
Timo Sirainen <tss@iki.fi>
parents: 2736
diff changeset
370 login_process_destroy(p);
1fd55b4341b9 Added version to login <-> master communication as well.
Timo Sirainen <tss@iki.fi>
parents: 2736
diff changeset
371 return;
1fd55b4341b9 Added version to login <-> master communication as well.
Timo Sirainen <tss@iki.fi>
parents: 2736
diff changeset
372 }
1fd55b4341b9 Added version to login <-> master communication as well.
Timo Sirainen <tss@iki.fi>
parents: 2736
diff changeset
373
4649
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diff changeset
374 if (req.ino == (ino_t)-1) {
a3d6a3462745 Send inode number in login requests and verify that they match.
Timo Sirainen <tss@iki.fi>
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diff changeset
375 /* state notification */
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
376 enum master_login_state state = req.tag;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
377
925
2e649dec0f09 Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents: 903
diff changeset
378 if (!p->initialized) {
2e649dec0f09 Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents: 903
diff changeset
379 /* initialization notify */
2e649dec0f09 Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents: 903
diff changeset
380 p->initialized = TRUE;;
2e649dec0f09 Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents: 903
diff changeset
381 } else {
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
382 /* change "listening for new connections" status */
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
383 login_process_set_state(p, state);
925
2e649dec0f09 Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents: 903
diff changeset
384 }
613
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
385 return;
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
386 }
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
387
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
388 fd_close_on_exec(client_fd, TRUE);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
389
3b1985cbc908 Initial revision
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parents:
diff changeset
390 /* ask the cookie from the auth process */
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
391 authreq = i_new(struct login_auth_request, 1);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
392 p->refcount++;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
393 authreq->process = p;
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
394 authreq->tag = ++auth_id_counter;
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
395 authreq->login_tag = req.tag;
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
396 authreq->fd = client_fd;
2097
4e77cb0aff21 Added %l, %r and %P variables and mail_log_prefix setting.
Timo Sirainen <tss@iki.fi>
parents: 2046
diff changeset
397 authreq->local_ip = req.local_ip;
4e77cb0aff21 Added %l, %r and %P variables and mail_log_prefix setting.
Timo Sirainen <tss@iki.fi>
parents: 2046
diff changeset
398 authreq->remote_ip = req.remote_ip;
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
399
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
400 auth_process = auth_process_find(req.auth_pid);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
401 if (auth_process == NULL) {
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
402 i_error("login: Authentication process %u doesn't exist",
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
403 req.auth_pid);
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
404 auth_master_callback(NULL, NULL, authreq);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
405 } else {
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
406 auth_process_request(auth_process, p->pid,
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
407 req.auth_id, authreq);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
408 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
409 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
410
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
411 static struct login_process *
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
412 login_process_new(struct login_group *group, pid_t pid, int fd)
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
413 {
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
414 struct login_process *p;
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
415
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
416 i_assert(pid != 0);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
417
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
418 p = i_new(struct login_process, 1);
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
419 p->group = group;
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
420 p->refcount = 1;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
421 p->pid = pid;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
422 p->fd = fd;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
423 p->io = io_add(fd, IO_READ, login_process_input, p);
764
f57c52738f90 Renamed IBuffer and OBuffer to IStream and OStream which describes their
Timo Sirainen <tss@iki.fi>
parents: 747
diff changeset
424 p->output = o_stream_create_file(fd, default_pool,
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
425 sizeof(struct master_login_reply)*10,
1499
e850252cdc7e Removed I/O priorities. They were pretty much useless and were just getting
Timo Sirainen <tss@iki.fi>
parents: 1468
diff changeset
426 FALSE);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
427
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
428 PID_ADD_PROCESS_TYPE(pid, PROCESS_TYPE_LOGIN);
195
db6e288be0e9 Replaced INT_TO_POINTER and POINTER_TO_INT macros with POINTER_CAST and
Timo Sirainen <tss@iki.fi>
parents: 10
diff changeset
429 hash_insert(processes, POINTER_CAST(pid), p);
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
430
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
431 p->state = LOGIN_STATE_LISTENING;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
432
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
433 if (p->group != NULL) {
4631
f5d53a684856 SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents: 4630
diff changeset
434 p->group->refcount++;
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
435 p->group->processes++;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
436 p->group->listening_processes++;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
437 }
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
438 return p;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
439 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
440
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
441 static void login_process_exited(struct login_process *p)
613
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
442 {
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
443 if (p->group != NULL)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
444 p->group->processes--;
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
445
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
446 hash_remove(processes, POINTER_CAST(p->pid));
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
447 login_process_unref(p);
613
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
448 }
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
449
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
450 static void login_process_destroy(struct login_process *p)
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
451 {
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
452 if (p->destroyed)
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
453 return;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
454 p->destroyed = TRUE;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
455
1035
fe49ece0f3ea We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents: 1000
diff changeset
456 if (!p->initialized && io_loop_is_running(ioloop)) {
1000
0fbafade2d85 If auth/login process died unexpectedly, the exit status or killing signal
Timo Sirainen <tss@iki.fi>
parents: 945
diff changeset
457 i_error("Login process died too early - shutting down");
0fbafade2d85 If auth/login process died unexpectedly, the exit status or killing signal
Timo Sirainen <tss@iki.fi>
parents: 945
diff changeset
458 io_loop_stop(ioloop);
0fbafade2d85 If auth/login process died unexpectedly, the exit status or killing signal
Timo Sirainen <tss@iki.fi>
parents: 945
diff changeset
459 }
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
460
764
f57c52738f90 Renamed IBuffer and OBuffer to IStream and OStream which describes their
Timo Sirainen <tss@iki.fi>
parents: 747
diff changeset
461 o_stream_close(p->output);
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3863
diff changeset
462 io_remove(&p->io);
805
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents: 801
diff changeset
463 if (close(p->fd) < 0)
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents: 801
diff changeset
464 i_error("close(login) failed: %m");
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
465
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
466 process_mark_nonlistening(p, LOGIN_STATE_FULL_LOGINS);
613
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
467
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
468 if (p->inetd_child)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
469 login_process_exited(p);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
470 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
471
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
472 static void login_process_unref(struct login_process *p)
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
473 {
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
474 if (--p->refcount > 0)
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
475 return;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
476
4631
f5d53a684856 SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents: 4630
diff changeset
477 if (p->group != NULL)
f5d53a684856 SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents: 4630
diff changeset
478 login_group_unref(p->group);
f5d53a684856 SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents: 4630
diff changeset
479
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3863
diff changeset
480 o_stream_unref(&p->output);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
481 i_free(p);
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
482 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
483
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
484 static void login_process_init_env(struct login_group *group, pid_t pid)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
485 {
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
486 struct settings *set = group->set;
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
487
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
488 child_process_init_env();
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
489
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
490 /* setup access environment - needs to be done after
3692
162ad2307710 Comment update
Timo Sirainen <tss@iki.fi>
parents: 3691
diff changeset
491 clean_child_process() since it clears environment. Don't set user
162ad2307710 Comment update
Timo Sirainen <tss@iki.fi>
parents: 3691
diff changeset
492 parameter since we don't want to call initgroups() for login
3691
e167b71e37e3 Don't call initgroups() at the start of login processes.
Timo Sirainen <tss@iki.fi>
parents: 3607
diff changeset
493 processes. */
e167b71e37e3 Don't call initgroups() at the start of login processes.
Timo Sirainen <tss@iki.fi>
parents: 3607
diff changeset
494 restrict_access_set_env(NULL, set->login_uid,
1724
b3526668de78 Make sure auth process and login process don't share uids.
Timo Sirainen <tss@iki.fi>
parents: 1610
diff changeset
495 set->server->login_gid,
1506
e7c627bacaaf Allow first_valid_gid to be 0. Drop any supplementary groups not in valid
Timo Sirainen <tss@iki.fi>
parents: 1499
diff changeset
496 set->login_chroot ? set->login_dir : NULL,
2141
8690d2000e33 Added mail_extra_groups setting.
Timo Sirainen <tss@iki.fi>
parents: 2097
diff changeset
497 0, 0, NULL);
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
498
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
499 env_put("DOVECOT_MASTER=1");
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
500
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
501 if (!set->ssl_disable) {
4388
af61031c746f Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents: 4353
diff changeset
502 const char *ssl_key_password;
3889
c7462001227b Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
503
4388
af61031c746f Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents: 4353
diff changeset
504 ssl_key_password = *set->ssl_key_password != '\0' ?
3889
c7462001227b Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
505 set->ssl_key_password : ssl_manual_key_password;
c7462001227b Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
506
4388
af61031c746f Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents: 4353
diff changeset
507 if (*set->ssl_ca_file != '\0') {
1907
190f1d315ce6 Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents: 1897
diff changeset
508 env_put(t_strconcat("SSL_CA_FILE=",
190f1d315ce6 Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents: 1897
diff changeset
509 set->ssl_ca_file, NULL));
190f1d315ce6 Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents: 1897
diff changeset
510 }
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
511 env_put(t_strconcat("SSL_CERT_FILE=",
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
512 set->ssl_cert_file, NULL));
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
513 env_put(t_strconcat("SSL_KEY_FILE=",
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
514 set->ssl_key_file, NULL));
3889
c7462001227b Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
515 env_put(t_strconcat("SSL_KEY_PASSWORD=",
c7462001227b Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
516 ssl_key_password, NULL));
3901
0ae5f5b468b7 Put ssl-parameters file into login directory so it still can be accessed
Timo Sirainen <tss@iki.fi>
parents: 3889
diff changeset
517 env_put("SSL_PARAM_FILE="SSL_PARAMETERS_FILENAME);
4388
af61031c746f Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents: 4353
diff changeset
518 if (*set->ssl_cipher_list != '\0') {
1996
d8f06a0c818e Added ssl_cipher_list setting.
Timo Sirainen <tss@iki.fi>
parents: 1907
diff changeset
519 env_put(t_strconcat("SSL_CIPHER_LIST=",
d8f06a0c818e Added ssl_cipher_list setting.
Timo Sirainen <tss@iki.fi>
parents: 1907
diff changeset
520 set->ssl_cipher_list, NULL));
d8f06a0c818e Added ssl_cipher_list setting.
Timo Sirainen <tss@iki.fi>
parents: 1907
diff changeset
521 }
1997
1d0985f6bdd9 Added ssl_verify_client_cert setting.
Timo Sirainen <tss@iki.fi>
parents: 1996
diff changeset
522 if (set->ssl_verify_client_cert)
1d0985f6bdd9 Added ssl_verify_client_cert setting.
Timo Sirainen <tss@iki.fi>
parents: 1996
diff changeset
523 env_put("SSL_VERIFY_CLIENT_CERT=1");
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
524 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
525
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
526 if (set->disable_plaintext_auth)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
527 env_put("DISABLE_PLAINTEXT_AUTH=1");
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
528 if (set->verbose_proctitle)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
529 env_put("VERBOSE_PROCTITLE=1");
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
530 if (set->verbose_ssl)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
531 env_put("VERBOSE_SSL=1");
2691
46f879c46b45 auth_verbose now affects imap/pop3 login processes too. Every authentication
Timo Sirainen <tss@iki.fi>
parents: 2674
diff changeset
532 if (set->server->auths->verbose)
46f879c46b45 auth_verbose now affects imap/pop3 login processes too. Every authentication
Timo Sirainen <tss@iki.fi>
parents: 2674
diff changeset
533 env_put("VERBOSE_AUTH=1");
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
534
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
535 if (set->login_process_per_connection) {
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
536 env_put("PROCESS_PER_CONNECTION=1");
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
537 env_put("MAX_LOGGING_USERS=1");
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
538 } else {
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
539 env_put(t_strdup_printf("MAX_CONNECTIONS=%u",
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
540 set->login_max_connections));
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
541 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
542
2674
857f5f7b512b Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents: 2329
diff changeset
543 env_put(t_strconcat("PROCESS_UID=", dec2str(pid), NULL));
857f5f7b512b Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents: 2329
diff changeset
544 env_put(t_strconcat("GREETING=", set->login_greeting, NULL));
3384
3b75956d20c4 Added configurable logging for login process. Added configurable pop3 logout
Timo Sirainen <tss@iki.fi>
parents: 3083
diff changeset
545 env_put(t_strconcat("LOG_FORMAT_ELEMENTS=",
3b75956d20c4 Added configurable logging for login process. Added configurable pop3 logout
Timo Sirainen <tss@iki.fi>
parents: 3083
diff changeset
546 set->login_log_format_elements, NULL));
3b75956d20c4 Added configurable logging for login process. Added configurable pop3 logout
Timo Sirainen <tss@iki.fi>
parents: 3083
diff changeset
547 env_put(t_strconcat("LOG_FORMAT=", set->login_log_format, NULL));
2674
857f5f7b512b Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents: 2329
diff changeset
548 if (set->login_greeting_capability)
857f5f7b512b Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents: 2329
diff changeset
549 env_put("GREETING_CAPABILITY=1");
4197
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
550
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
551 if (group->process_type == PROCESS_TYPE_IMAP) {
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
552 env_put(t_strconcat("CAPABILITY_STRING=",
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
553 *set->imap_capability != '\0' ?
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
554 set->imap_capability :
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
555 set->imap_generated_capability, NULL));
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4148
diff changeset
556 }
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
557 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
558
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
559 static pid_t create_login_process(struct login_group *group)
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
560 {
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
561 struct log_io *log;
3083
a20882c4f092 Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents: 2886
diff changeset
562 unsigned int max_log_lines_per_sec;
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
563 const char *prefix;
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
564 pid_t pid;
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
565 int fd[2], log_fd;
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
566
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
567 if (group->set->login_uid == 0)
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
568 i_fatal("Login process must not run as root");
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
569
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
570 /* create communication to process with a socket pair */
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
571 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) {
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
572 i_error("socketpair() failed: %m");
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
573 return -1;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
574 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
575
3083
a20882c4f092 Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents: 2886
diff changeset
576 max_log_lines_per_sec =
a20882c4f092 Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents: 2886
diff changeset
577 group->set->login_process_per_connection ? 10 : 0;
a20882c4f092 Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents: 2886
diff changeset
578 log_fd = log_create_pipe(&log, max_log_lines_per_sec);
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
579 if (log_fd < 0)
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
580 pid = -1;
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
581 else {
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
582 pid = fork();
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
583 if (pid < 0)
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
584 i_error("fork() failed: %m");
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
585 }
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
586
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
587 if (pid < 0) {
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
588 (void)close(fd[0]);
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
589 (void)close(fd[1]);
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
590 (void)close(log_fd);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
591 return -1;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
592 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
593
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
594 if (pid != 0) {
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
595 /* master */
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
596 prefix = t_strdup_printf("%s-login: ",
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
597 process_names[group->process_type]);
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
598 log_set_prefix(log, prefix);
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
599
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
600 net_set_nonblock(fd[0], TRUE);
727
8dd8ebe6bcac We use close-on-exec flag now to make sure that master process closes the
Timo Sirainen <tss@iki.fi>
parents: 722
diff changeset
601 fd_close_on_exec(fd[0], TRUE);
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
602 (void)login_process_new(group, pid, fd[0]);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
603 (void)close(fd[1]);
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
604 (void)close(log_fd);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
605 return pid;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
606 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
607
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
608 prefix = t_strdup_printf("master-%s-login: ",
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
609 process_names[group->process_type]);
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
610 log_set_prefix(log, prefix);
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
611
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
612 /* move the listen handle */
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
613 if (dup2(group->set->listen_fd, LOGIN_LISTEN_FD) < 0)
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
614 i_fatal("dup2(listen_fd) failed: %m");
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
615 fd_close_on_exec(LOGIN_LISTEN_FD, FALSE);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
616
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
617 /* move the SSL listen handle */
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
618 if (dup2(group->set->ssl_listen_fd, LOGIN_SSL_LISTEN_FD) < 0)
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
619 i_fatal("dup2(ssl_listen_fd) failed: %m");
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
620 fd_close_on_exec(LOGIN_SSL_LISTEN_FD, FALSE);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
621
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
622 /* move communication handle */
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
623 if (dup2(fd[1], LOGIN_MASTER_SOCKET_FD) < 0)
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
624 i_fatal("dup2(master) failed: %m");
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
625 fd_close_on_exec(LOGIN_MASTER_SOCKET_FD, FALSE);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
626
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
627 if (dup2(log_fd, 2) < 0)
2046
6ae973f60f43 logging cleanups.
Timo Sirainen <tss@iki.fi>
parents: 2000
diff changeset
628 i_fatal("dup2(stderr) failed: %m");
2000
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
629 fd_close_on_exec(2, FALSE);
c7c19f5071c3 Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents: 1997
diff changeset
630
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
631 (void)close(fd[0]);
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
632 (void)close(fd[1]);
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
633
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
634 login_process_init_env(group, getpid());
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
635
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
636 if (!group->set->login_chroot) {
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
637 /* no chrooting, but still change to the directory */
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
638 if (chdir(group->set->login_dir) < 0) {
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
639 i_fatal("chdir(%s) failed: %m",
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
640 group->set->login_dir);
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
641 }
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
642 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
643
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
644 restrict_process_size(group->set->login_process_size, (unsigned int)-1);
722
0438621d25ff Added virtual memory size limits to processes. Default values are pretty
Timo Sirainen <tss@iki.fi>
parents: 699
diff changeset
645
801
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents: 791
diff changeset
646 /* make sure we don't leak syslog fd, but do it last so that
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents: 791
diff changeset
647 any errors above will be logged */
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents: 791
diff changeset
648 closelog();
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents: 791
diff changeset
649
2886
634cf6aa34d1 Allow running all executables with parameters.
Timo Sirainen <tss@iki.fi>
parents: 2779
diff changeset
650 client_process_exec(group->set->login_executable, "");
1441
a83ce8395316 If exec() fails, show the full path rather than argv[0]
Timo Sirainen <tss@iki.fi>
parents: 1398
diff changeset
651 i_fatal_status(FATAL_EXEC, "execv(%s) failed: %m",
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
652 group->set->login_executable);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
653 return -1;
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
654 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
655
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
656 void login_process_destroyed(pid_t pid, bool abnormal_exit)
615
0d852af6842e Master process generates DH/RSA parameters now and stores them into file
Timo Sirainen <tss@iki.fi>
parents: 614
diff changeset
657 {
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
658 struct login_process *p;
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
659
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
660 p = hash_lookup(processes, POINTER_CAST(pid));
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
661 if (p == NULL)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
662 i_panic("Lost login process PID %s", dec2str(pid));
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
663 i_assert(!p->inetd_child);
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
664
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
665 if (abnormal_exit) {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
666 /* don't start raising the process count if they're dying all
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
667 the time */
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
668 if (p->group != NULL)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
669 p->group->wanted_processes_count = 0;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
670 }
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
671
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
672 login_process_destroy(p);
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
673 login_process_exited(p);
615
0d852af6842e Master process generates DH/RSA parameters now and stores them into file
Timo Sirainen <tss@iki.fi>
parents: 614
diff changeset
674 }
0d852af6842e Master process generates DH/RSA parameters now and stores them into file
Timo Sirainen <tss@iki.fi>
parents: 614
diff changeset
675
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
676 void login_processes_destroy_all(bool unref)
635
90a65c017bf0 SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents: 615
diff changeset
677 {
1897
1e6ed8045f2b Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents: 1724
diff changeset
678 struct hash_iterate_context *iter;
1e6ed8045f2b Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents: 1724
diff changeset
679 void *key, *value;
1e6ed8045f2b Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents: 1724
diff changeset
680
1e6ed8045f2b Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents: 1724
diff changeset
681 iter = hash_iterate_init(processes);
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
682 while (hash_iterate(iter, &key, &value)) {
1897
1e6ed8045f2b Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents: 1724
diff changeset
683 login_process_destroy(value);
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
684 if (unref) login_process_unref(value);
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
685 }
1897
1e6ed8045f2b Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents: 1724
diff changeset
686 hash_iterate_deinit(iter);
635
90a65c017bf0 SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents: 615
diff changeset
687
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
688 while (login_groups != NULL) {
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
689 struct login_group *group = login_groups;
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
690
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
691 login_groups = group->next;
4631
f5d53a684856 SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents: 4630
diff changeset
692 login_group_unref(group);
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
693 }
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
694 }
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
695
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
696 static void login_processes_notify_group(struct login_group *group)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
697 {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
698 struct hash_iterate_context *iter;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
699 struct master_login_reply reply;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
700 void *key, *value;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
701
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
702 memset(&reply, 0, sizeof(reply));
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
703
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
704 iter = hash_iterate_init(processes);
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
705 while (hash_iterate(iter, &key, &value)) {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
706 struct login_process *p = value;
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
707
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
708 if (p->group == group)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
709 (void)o_stream_send(p->output, &reply, sizeof(reply));
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
710 }
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
711 hash_iterate_deinit(iter);
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
712 }
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
713
4148
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
714 static int login_group_start_missings(struct login_group *group)
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
715 {
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
716 if (group->set->login_process_per_connection &&
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
717 group->processes >= group->set->login_max_processes_count &&
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
718 group->listening_processes == 0) {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
719 /* destroy the oldest listening process. non-listening
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
720 processes are logged in users who we don't want to kick out
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
721 because someone's started flooding */
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
722 if (group->oldest_prelogin_process != NULL)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
723 login_process_destroy(group->oldest_prelogin_process);
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
724 }
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
725
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
726 /* we want to respond fast when multiple clients are connecting
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
727 at once, but we also want to prevent fork-bombing. use the
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
728 same method as apache: check once a second if we need new
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
729 processes. if yes and we've used all the existing processes,
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
730 double their amount (unless we've hit the high limit).
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
731 Then for each second that didn't use all existing processes,
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
732 drop the max. process count by one. */
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
733 if (group->wanted_processes_count < group->set->login_processes_count) {
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
734 group->wanted_processes_count =
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
735 group->set->login_processes_count;
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
736 } else if (group->listening_processes == 0)
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
737 group->wanted_processes_count *= 2;
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
738 else if (group->wanted_processes_count >
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
739 group->set->login_processes_count)
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
740 group->wanted_processes_count--;
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
741
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
742 while (group->listening_processes < group->wanted_processes_count &&
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
743 group->processes < group->set->login_max_processes_count) {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
744 if (create_login_process(group) < 0)
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
745 return -1;
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
746 }
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
747
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
748 if (group->listening_processes == 0 &&
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
749 !group->set->login_process_per_connection) {
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
750 /* we've reached our limit. notify the processes to start
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
751 listening again which makes them kill some of their
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
752 oldest clients when accepting the next connection */
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
753 login_processes_notify_group(group);
4148
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
754 }
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
755 return 0;
635
90a65c017bf0 SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents: 615
diff changeset
756 }
90a65c017bf0 SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents: 615
diff changeset
757
4148
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
758 static void login_processes_stall(void)
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
759 {
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
760 if (logins_stalled)
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
761 return;
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
762
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
763 i_error("Temporary failure in creating login processes, "
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
764 "slowing down for now");
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
765 logins_stalled = TRUE;
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
766
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
767 timeout_remove(&to);
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
768 to = timeout_add(60*1000, login_processes_start_missing, NULL);
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
769 }
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
770
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
771
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents: 876
diff changeset
772 static void
1036
f782b3319553 Removed useless parameters from io_callback_t and timeout_callback_t.
Timo Sirainen <tss@iki.fi>
parents: 1035
diff changeset
773 login_processes_start_missing(void *context __attr_unused__)
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
774 {
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
775 struct login_group *group;
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
776
1610
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
777 if (login_groups == NULL)
6850142c4e25 New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents: 1506
diff changeset
778 login_process_groups_create();
614
e60620644af3 login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents: 613
diff changeset
779
4148
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
780 for (group = login_groups; group != NULL; group = group->next) {
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
781 if (login_group_start_missings(group) < 0) {
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
782 login_processes_stall();
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
783 return;
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
784 }
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
785 }
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
786
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
787 if (logins_stalled) {
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
788 /* processes were created successfully */
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
789 i_info("Created login processes successfully, unstalling");
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
790
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
791 logins_stalled = FALSE;
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
792 timeout_remove(&to);
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
793 to = timeout_add(1000, login_processes_start_missing, NULL);
f60d73c96618 If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents: 3901
diff changeset
794 }
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
795 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
796
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
797 static int login_process_send_env(struct login_process *p)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
798 {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
799 extern char **environ;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
800 char **env;
3607
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
801 ssize_t len;
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
802 int ret = 0;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
803
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
804 /* this will clear our environment. luckily we don't need it. */
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
805 login_process_init_env(p->group, p->pid);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
806
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
807 for (env = environ; *env != NULL; env++) {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
808 len = strlen(*env);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
809
3607
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
810 if (o_stream_send(p->output, *env, len) != len ||
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
811 o_stream_send(p->output, "\n", 1) != 1) {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
812 ret = -1;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
813 break;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
814 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
815 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
816
3607
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
817 if (!p->group->set->login_chroot) {
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
818 /* if we're not chrooting, we need to tell login process
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
819 where its base directory is */
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
820 const char *str = t_strdup_printf("LOGIN_DIR=%s\n",
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
821 p->group->set->login_dir);
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
822 len = strlen(str);
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
823 if (o_stream_send(p->output, str, len) != len)
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
824 ret = -1;
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
825 }
a2dd3d895e00 Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents: 3384
diff changeset
826
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
827 if (ret == 0 && o_stream_send(p->output, "\n", 1) != 1)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
828 ret = -1;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
829
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
830 env_clean();
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
831 return ret;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
832 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
833
3863
55df57c028d4 Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents: 3692
diff changeset
834 static bool login_process_init_group(struct login_process *p)
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
835 {
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
836 p->group->processes++;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
837 p->group->listening_processes++;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
838
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
839 if (login_process_send_env(p) < 0) {
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
840 i_error("login: Couldn't send environment");
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
841 return FALSE;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
842 }
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
843
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
844 return TRUE;
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
845 }
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
846
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
847 static void inetd_login_accept(void *context __attr_unused__)
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Timo Sirainen <tss@iki.fi>
parents: 1237
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848 {
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Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
849 struct login_process *p;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
850 int fd;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
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851
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
852 fd = net_accept(inetd_login_fd, NULL, NULL);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
853 if (fd < 0) {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
854 if (fd < -1)
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
855 i_fatal("accept(inetd_login_fd) failed: %m");
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
856 } else {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
857 net_set_nonblock(fd, TRUE);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
858 fd_close_on_exec(fd, TRUE);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
859
1275
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
860 p = login_process_new(NULL, ++login_pid_counter, fd);
af685269ead0 login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents: 1273
diff changeset
861 p->initialized = TRUE;
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
862 p->inetd_child = TRUE;
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
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863 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
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864 }
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
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865
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
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866 void login_processes_init(void)
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
867 {
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
868 auth_id_counter = 0;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
869 login_pid_counter = 0;
1055
a72bba3f8a55 Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents: 1039
diff changeset
870 login_groups = NULL;
613
1906116a62ce Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents: 596
diff changeset
871
945
501f076f2e74 Rewrote hash table code, works with less memory now. Also some memory
Timo Sirainen <tss@iki.fi>
parents: 929
diff changeset
872 processes = hash_create(default_pool, default_pool, 128, NULL, NULL);
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
873 if (!IS_INETD()) {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
874 to = timeout_add(1000, login_processes_start_missing, NULL);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
875 io_listen = NULL;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
876 } else {
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
877 to = NULL;
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
878 io_listen = io_add(inetd_login_fd, IO_READ,
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
879 inetd_login_accept, NULL);
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
880 }
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
881 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
882
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
883 void login_processes_deinit(void)
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
884 {
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
885 if (to != NULL)
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3863
diff changeset
886 timeout_remove(&to);
1273
2cf2e08a6ee9 Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents: 1237
diff changeset
887 if (io_listen != NULL)
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3863
diff changeset
888 io_remove(&io_listen);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
889
4538
9d9e72374164 Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents: 4388
diff changeset
890 login_processes_destroy_all(TRUE);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
891 hash_destroy(processes);
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
892 }