Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/plugins/quota/quota-fs.c @ 4552:ef71b2fdd433 HEAD

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Put back specific checks for struct dqblk.dqb_curblocks vs curspace. The removal broke compiling for some OSes such as OSX.
author Timo Sirainen <tss@iki.fi>
date Thu, 10 Aug 2006 20:46:05 +0300
parents 912e6d3053e8
children a54558861acc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Copyright (C) 2005-2006 Timo Sirainen */
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2
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3 /* Only for reporting filesystem quota */
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4
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5 #include "lib.h"
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6 #include "array.h"
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7 #include "str.h"
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8 #include "mountpoint.h"
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9 #include "quota-private.h"
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10 #include "quota-fs.h"
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11
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12 #ifdef HAVE_FS_QUOTA
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13
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14 #include <stdio.h>
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15 #include <stdlib.h>
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16 #include <fcntl.h>
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17 #include <unistd.h>
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18 #include <sys/stat.h>
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19 #ifdef HAVE_LINUX_DQBLK_XFS_H
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20 # include <linux/dqblk_xfs.h>
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21 #endif
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22
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23 #ifndef DEV_BSIZE
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24 # define DEV_BSIZE 512
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25 #endif
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26
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27 #ifdef HAVE_STRUCT_DQBLK_CURSPACE
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28 # define dqb_curblocks dqb_curspace
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29 #endif
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30
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31 /* Older sys/quota.h doesn't define _LINUX_QUOTA_VERSION at all, which means
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32 it supports only v1 quota */
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33 #ifndef _LINUX_QUOTA_VERSION
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34 # define _LINUX_QUOTA_VERSION 1
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35 #endif
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36
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37 struct fs_quota_mountpoint {
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38 char *mount_path;
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39 char *device_path;
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40 char *type;
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41
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42 #ifdef HAVE_Q_QUOTACTL
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43 int fd;
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44 char *path;
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45 #endif
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46 };
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47
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48 struct fs_quota_root {
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49 struct quota_root root;
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50
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51 uid_t uid;
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52 struct fs_quota_mountpoint *mount;
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53 };
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54
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55 extern struct quota_backend quota_backend_fs;
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56
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57 static struct quota_root *fs_quota_alloc(void)
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58 {
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59 struct fs_quota_root *root;
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60
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61 root = i_new(struct fs_quota_root, 1);
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62 root->uid = geteuid();
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63
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64 return &root->root;
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65 }
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66
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67 static void fs_quota_mountpoint_free(struct fs_quota_mountpoint *mount)
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68 {
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69 #ifdef HAVE_Q_QUOTACTL
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70 if (mount->fd != -1) {
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71 if (close(mount->fd) < 0)
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72 i_error("close(%s) failed: %m", mount->path);
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73 }
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74 i_free(mount->path);
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75 #endif
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77 i_free(mount->device_path);
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78 i_free(mount->mount_path);
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79 i_free(mount->type);
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80 i_free(mount);
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81 }
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83 static void fs_quota_deinit(struct quota_root *_root)
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84 {
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85 struct fs_quota_root *root = (struct fs_quota_root *)_root;
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87 if (root->mount != NULL)
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88 fs_quota_mountpoint_free(root->mount);
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89 i_free(root);
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90 }
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92 static struct fs_quota_mountpoint *fs_quota_mountpoint_get(const char *dir)
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93 {
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94 struct fs_quota_mountpoint *mount;
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95 struct mountpoint point;
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96 int ret;
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97
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98 ret = mountpoint_get(dir, default_pool, &point);
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99 if (ret <= 0)
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100 return NULL;
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101
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102 mount = i_new(struct fs_quota_mountpoint, 1);
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103 mount->device_path = point.device_path;
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104 mount->mount_path = point.mount_path;
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105 mount->type = point.type;
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106 return mount;
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107 }
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108
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109 static struct fs_quota_root *
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diff changeset
110 fs_quota_root_find_mountpoint(struct quota *quota,
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111 const struct fs_quota_mountpoint *mount)
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112 {
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113 struct quota_root *const *roots;
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114 struct fs_quota_root *empty = NULL;
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diff changeset
115 unsigned int i, count;
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116
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diff changeset
117 roots = array_get(&quota->roots, &count);
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diff changeset
118 for (i = 0; i < count; i++) {
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diff changeset
119 if (roots[i]->backend.name == quota_backend_fs.name) {
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120 struct fs_quota_root *root =
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121 (struct fs_quota_root *)roots[i];
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122
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diff changeset
123 if (root->mount == NULL)
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124 empty = root;
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125 else if (strcmp(root->mount->mount_path,
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126 mount->mount_path) == 0)
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127 return root;
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128 }
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129 }
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130 return empty;
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131 }
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132
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133 static void fs_quota_storage_added(struct quota *quota,
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134 struct mail_storage *storage)
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135 {
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136 struct fs_quota_mountpoint *mount;
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137 struct quota_root *_root;
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138 struct fs_quota_root *root;
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139 const char *dir;
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diff changeset
140 bool is_file;
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141
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142 dir = mail_storage_get_mailbox_path(storage, "", &is_file);
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143 mount = fs_quota_mountpoint_get(dir);
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144 if (getenv("DEBUG") != NULL) {
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145 i_info("fs quota add storage dir = %s", dir);
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146 i_info("fs quota block device = %s", mount->device_path);
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147 i_info("fs quota mount point = %s", mount->mount_path);
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148 }
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149
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150 root = fs_quota_root_find_mountpoint(quota, mount);
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151 if (root != NULL && root->mount != NULL) {
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152 /* already exists */
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153 fs_quota_mountpoint_free(mount);
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154 return;
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155 }
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156
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157 if (root == NULL) {
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158 /* create a new root for this mountpoint */
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159 _root = quota_root_init(quota, quota_backend_fs.name);
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160 root = (struct fs_quota_root *)_root;
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diff changeset
161 root->root.name =
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diff changeset
162 p_strdup_printf(root->root.pool, "%s%d",
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diff changeset
163 quota_backend_fs.name,
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164 array_count(&quota->roots));
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165 } else {
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166 /* this is the default root. */
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167 }
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168 root->mount = mount;
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169
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170 #ifdef HAVE_Q_QUOTACTL
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171 if (mount->path == NULL) {
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172 mount->path = i_strconcat(mount->mount_path, "/quotas", NULL);
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173 mount->fd = open(mount->path, O_RDONLY);
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174 if (mount->fd == -1 && errno != ENOENT)
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175 i_error("open(%s) failed: %m", mount->path);
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176 }
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177 #endif
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178 }
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179
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180 static const char *const *
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181 fs_quota_root_get_resources(struct quota_root *root __attr_unused__)
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182 {
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183 static const char *resources[] = { QUOTA_NAME_STORAGE, NULL };
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184
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185 return resources;
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186 }
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187
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188 static int
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diff changeset
189 fs_quota_get_resource(struct quota_root *_root, const char *name,
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190 uint64_t *value_r, uint64_t *limit_r)
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diff changeset
191 {
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diff changeset
192 struct fs_quota_root *root = (struct fs_quota_root *)_root;
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193 struct dqblk dqblk;
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194 #ifdef HAVE_Q_QUOTACTL
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195 struct quotctl ctl;
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196 #endif
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197
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198 *value_r = 0;
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199 *limit_r = 0;
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diff changeset
200
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diff changeset
201 if (strcasecmp(name, QUOTA_NAME_STORAGE) != 0 || root->mount == NULL)
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202 return 0;
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203
4387
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diff changeset
204 #if defined (HAVE_QUOTACTL) && defined(HAVE_SYS_QUOTA_H)
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diff changeset
205 /* Linux */
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diff changeset
206 #ifdef HAVE_LINUX_DQBLK_XFS_H
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diff changeset
207 if (strcmp(root->mount->type, "xfs") == 0) {
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diff changeset
208 /* XFS */
670dd15edbf3 Added support for XFS disk quotas. Patch by Pawel Jarosz
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diff changeset
209 struct fs_disk_quota xdqblk;
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diff changeset
210
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diff changeset
211 if (quotactl(QCMD(Q_XGETQUOTA, USRQUOTA),
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diff changeset
212 root->mount->device_path,
4448
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diff changeset
213 root->uid, (caddr_t)&xdqblk) < 0) {
4387
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diff changeset
214 i_error("quotactl(Q_XGETQUOTA, %s) failed: %m",
670dd15edbf3 Added support for XFS disk quotas. Patch by Pawel Jarosz
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215 root->mount->device_path);
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216 return -1;
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217 }
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218
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diff changeset
219 /* values always returned in 512 byte blocks */
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diff changeset
220 *value_r = xdqblk.d_bcount >> 1;
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diff changeset
221 *limit_r = xdqblk.d_blk_softlimit >> 1;
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diff changeset
222 } else
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26e028337e1e quotactl() parameters were backwards for BSDs and AIX.
Timo Sirainen <tss@iki.fi>
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diff changeset
223 #endif
4387
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diff changeset
224 {
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diff changeset
225 /* ext2, ext3 */
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diff changeset
226 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA),
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diff changeset
227 root->mount->device_path,
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diff changeset
228 root->uid, (caddr_t)&dqblk) < 0) {
4387
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229 i_error("quotactl(Q_GETQUOTA, %s) failed: %m",
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230 root->mount->device_path);
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231 if (errno == EINVAL) {
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232 i_error("Dovecot was compiled with Linux quota "
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233 "v%d support, try changing it "
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234 "(--with-linux-quota configure option)",
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235 _LINUX_QUOTA_VERSION);
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236 }
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237 return -1;
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238 }
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239
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240 *value_r = dqblk.dqb_curblocks / 1024;
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241 *limit_r = dqblk.dqb_bsoftlimit;
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242 }
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243 #elif defined(HAVE_QUOTACTL)
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244 /* BSD, AIX */
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245 if (quotactl(root->mount->mount_path, QCMD(Q_GETQUOTA, USRQUOTA),
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246 root->uid, (void *)&dqblk) < 0) {
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247 i_error("quotactl(Q_GETQUOTA, %s) failed: %m",
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248 root->mount->mount_path);
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249 quota_set_error(_root->setup->quota, "Internal quota error");
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250 return -1;
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251 }
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252 *value_r = (uint64_t)dqblk.dqb_curblocks * 1024 / DEV_BSIZE;
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253 *limit_r = (uint64_t)dqblk.dqb_bsoftlimit * 1024 / DEV_BSIZE;
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254 #else
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255 /* Solaris */
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256 if (root->mount->fd == -1)
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257 return 0;
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258
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259 ctl.op = Q_GETQUOTA;
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260 ctl.uid = root->uid;
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261 ctl.addr = (caddr_t)&dqblk;
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262 if (ioctl(root->mount->fd, Q_QUOTACTL, &ctl) < 0) {
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263 i_error("ioctl(%s, Q_QUOTACTL) failed: %m", root->mount->path);
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264 quota_set_error(_root->setup->quota, "Internal quota error");
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265 return -1;
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266 }
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267 *value_r = (uint64_t)dqblk.dqb_curblocks * 1024 / DEV_BSIZE;
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268 *limit_r = (uint64_t)dqblk.dqb_bsoftlimit * 1024 / DEV_BSIZE;
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269 #endif
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270 return 1;
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271 }
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272
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273 static int
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274 fs_quota_update(struct quota_root *root __attr_unused__,
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275 struct quota_transaction_context *ctx __attr_unused__)
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276 {
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277 return 0;
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278 }
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279
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280 struct quota_backend quota_backend_fs = {
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281 "fs",
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282
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283 {
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284 fs_quota_alloc,
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285 NULL,
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286 fs_quota_deinit,
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287
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288 fs_quota_storage_added,
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289
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290 fs_quota_root_get_resources,
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291 fs_quota_get_resource,
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292 fs_quota_update
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293 }
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294 };
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295
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296 #endif