Mercurial > dovecot > core-2.2
view src/config/config-connection.c @ 10582:615eef3139c2 HEAD
Updated copyright notices to include year 2010.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Mon, 25 Jan 2010 01:19:08 +0200 |
parents | a90d9bb6fec3 |
children | bf4822f0846b |
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/* Copyright (c) 2005-2010 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "llist.h" #include "istream.h" #include "ostream.h" #include "settings-parser.h" #include "master-service.h" #include "config-request.h" #include "config-parser.h" #include "config-connection.h" #include <stdlib.h> #include <unistd.h> #define MAX_INBUF_SIZE 1024 #define CONFIG_CLIENT_PROTOCOL_MAJOR_VERSION 1 #define CONFIG_CLIENT_PROTOCOL_MINOR_VERSION 0 struct config_connection { struct config_connection *prev, *next; int fd; struct istream *input; struct ostream *output; struct io *io; unsigned int version_received:1; unsigned int handshaked:1; }; struct config_connection *config_connections = NULL; static const char *const * config_connection_next_line(struct config_connection *conn) { const char *line; line = i_stream_next_line(conn->input); if (line == NULL) return NULL; return t_strsplit(line, "\t"); } static void config_request_output(const char *key, const char *value, enum config_key_type type ATTR_UNUSED, void *context) { struct ostream *output = context; const char *p; o_stream_send_str(output, key); o_stream_send_str(output, "="); while ((p = strchr(value, '\n')) != NULL) { o_stream_send(output, value, p-value); o_stream_send(output, SETTING_STREAM_LF_CHAR, 1); value = p+1; } o_stream_send_str(output, value); o_stream_send_str(output, "\n"); } static int config_connection_request(struct config_connection *conn, const char *const *args) { struct config_filter filter; const char *path, *error, *module = ""; /* [<args>] */ memset(&filter, 0, sizeof(filter)); for (; *args != NULL; args++) { if (strncmp(*args, "service=", 8) == 0) filter.service = *args + 8; else if (strncmp(*args, "module=", 7) == 0) module = *args + 7; else if (strncmp(*args, "lhost=", 6) == 0) filter.local_host = *args + 6; else if (strncmp(*args, "rhost=", 6) == 0) filter.remote_host = *args + 6; else if (strncmp(*args, "lip=", 4) == 0) { if (net_addr2ip(*args + 4, &filter.local_net) == 0) { filter.local_bits = IPADDR_IS_V4(&filter.local_net) ? 32 : 128; } } else if (strncmp(*args, "rip=", 4) == 0) { if (net_addr2ip(*args + 4, &filter.remote_net) == 0) { filter.remote_bits = IPADDR_IS_V4(&filter.remote_net) ? 32 : 128; } } } if (strcmp(module, "master") == 0) { /* master reads configuration only when reloading settings */ path = master_service_get_config_path(master_service); if (config_parse_file(path, TRUE, &error) <= 0) { o_stream_send_str(conn->output, t_strconcat("ERROR ", error, "\n", NULL)); config_connection_destroy(conn); return -1; } } o_stream_cork(conn->output); if (config_request_handle(&filter, module, CONFIG_DUMP_SCOPE_SET, 0, config_request_output, conn->output) < 0) { config_connection_destroy(conn); return -1; } o_stream_send_str(conn->output, "\n"); o_stream_uncork(conn->output); return 0; } static void config_connection_input(void *context) { struct config_connection *conn = context; const char *const *args, *line; switch (i_stream_read(conn->input)) { case -2: i_error("BUG: Config client connection sent too much data"); config_connection_destroy(conn); return; case -1: config_connection_destroy(conn); return; } if (!conn->version_received) { line = i_stream_next_line(conn->input); if (line == NULL) return; if (strncmp(line, "VERSION\tconfig\t", 15) != 0 || atoi(t_strcut(line + 15, '\t')) != CONFIG_CLIENT_PROTOCOL_MAJOR_VERSION) { i_error("Config client not compatible with this server " "(mixed old and new binaries?)"); config_connection_destroy(conn); return; } conn->version_received = TRUE; } while ((args = config_connection_next_line(conn)) != NULL) { if (args[0] == NULL) continue; if (strcmp(args[0], "REQ") == 0) { if (config_connection_request(conn, args + 1) < 0) break; } } } struct config_connection *config_connection_create(int fd) { struct config_connection *conn; conn = i_new(struct config_connection, 1); conn->fd = fd; conn->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE); conn->output = o_stream_create_fd(fd, (size_t)-1, FALSE); conn->io = io_add(fd, IO_READ, config_connection_input, conn); DLLIST_PREPEND(&config_connections, conn); return conn; } void config_connection_destroy(struct config_connection *conn) { DLLIST_REMOVE(&config_connections, conn); io_remove(&conn->io); i_stream_destroy(&conn->input); o_stream_destroy(&conn->output); if (close(conn->fd) < 0) i_error("close(config conn) failed: %m"); i_free(conn); master_service_client_connection_destroyed(master_service); } void config_connections_destroy_all(void) { while (config_connections != NULL) config_connection_destroy(config_connections); }