Module: sip-router Branch: refs/tags/req_uri Commit: 9191576d6d861bbc56ac01283f85377bd8aa0499 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=9191576d...

Author: Miklos Tirpak miklos@iptel.org Committer: Miklos Tirpak miklos@iptel.org Date: Mon Apr 28 07:04:40 2003 +0000

Use (FROM, request URI) pair instead of (FROM, TO) New parameters exported

---

modules_s/permissions/permissions.c | 75 +++++++++++++++++++++++------------ 1 files changed, 50 insertions(+), 25 deletions(-)

diff --git a/modules_s/permissions/permissions.c b/modules_s/permissions/permissions.c index fbfb61a..884101e 100644 --- a/modules_s/permissions/permissions.c +++ b/modules_s/permissions/permissions.c @@ -33,20 +33,34 @@ #include "rule.h" #include "parse_config.h" #include "../../parser/parse_from.h" +#include "../../parser/parse_uri.h" + +MODULE_VERSION

rule *allow_rules = NULL, *deny_rules = NULL;

+/* Module parameter variables */ +char *allow_file = ALLOW_FILE; +char *deny_file = DENY_FILE; + /* Exported functions */ static cmd_export_t cmds[] = { {"allow_routing", allow_routing, 0, 0, REQUEST_ROUTE}, {0, 0, 0, 0, 0} };

+/* Exported parameters */ +static param_export_t params[] = { + {"allow_file", STR_PARAM, &allow_file}, + {"deny_file", STR_PARAM, &deny_file}, + {0, 0, 0} +}; + /* Module interface */ struct module_exports exports = { "permissions", cmds, /* Exported functions */ - 0, /* Exported parameters */ + params, /* Exported parameters */ mod_init, /* module initialization function */ 0, /* response function */ mod_exit, /* destroy function */ @@ -60,8 +74,13 @@ int mod_init(void) fprintf(stderr, "print - initializing\n");

- allow_rules = parse_config_file(ALLOW_FILE); - deny_rules = parse_config_file(DENY_FILE); + allow_rules = parse_config_file(allow_file); + if (allow_rules) LOG(L_INFO, "Allow file (%s) parsed\n", allow_file); + else LOG(L_WARN, "Allow file (%s) not found\n", allow_file); + + deny_rules = parse_config_file(deny_file); + if (deny_rules) LOG(L_INFO, "Deny file (%s) parsed\n", deny_file); + else LOG(L_WARN, "Deny file (%s) not found\n", deny_file); return 0; } @@ -80,12 +99,15 @@ return values: 1: allow */ int allow_routing(struct sip_msg* msg, char* str1, char* str2) { - struct hdr_field *from, *to; + struct hdr_field *from; int len; - char from_str[EXPRESSION_LENGTH+1], to_str[EXPRESSION_LENGTH+1]; + char from_str[EXPRESSION_LENGTH+1], req_uri_str[EXPRESSION_LENGTH+1]; /* turn off control, allow any routing */ - if ((!allow_rules) && (!deny_rules)) return 1; + if ((!allow_rules) && (!deny_rules)) { + LOG(L_INFO, "allow_routing(): (module permissions) No rules => allow any routing\n"); + return 1; + } /* looking for FROM HF */ if ((!msg->from) && (parse_headers(msg, HDR_FROM, 0) == -1)) { @@ -113,35 +135,38 @@ int allow_routing(struct sip_msg* msg, char* str1, char* str2) { strncpy(from_str, ((struct to_body*)from->parsed)->uri.s, len); from_str[len] = '\0'; - /* looking for TO HF */ - if ((!msg->to) && (parse_headers(msg, HDR_TO, 0) == -1)) { - LOG(L_ERR, "allow_routing(): (module permissions) Error while parsing message\n"); - return -1; - } - - to = msg->to; - if (!to) { - LOG(L_ERR, "allow_ruting(): (module permissions) TO header field not found\n"); - return -1; + /* looking for request URI */ + if (parse_sip_msg_uri(msg) < 0) { + LOG(L_ERR, "allow_routing(): uri parsing failed\n"); + return -1; } - /* parse_to_headers is called automaticaly by parse_headers */ - - len = ((struct to_body*)to->parsed)->uri.len; + len = msg->parsed_uri.user.len + msg->parsed_uri.host.len + 5; if (len > EXPRESSION_LENGTH) { - LOG(L_ERR, "allow_ruting(): (module permissions) TO header field is too long: %d chars\n", len); + LOG(L_ERR, "allow_ruting(): (module permissions) Request URI is too long: %d chars\n", len); return -1; } - strncpy(to_str, ((struct to_body*)to->parsed)->uri.s, len); - to_str[len] = '\0'; + strcpy(req_uri_str, "sip:"); + memcpy(req_uri_str + 4, msg->parsed_uri.user.s, msg->parsed_uri.user.len); + req_uri_str[msg->parsed_uri.user.len + 4] = '@'; + memcpy(req_uri_str + msg->parsed_uri.user.len + 5, msg->parsed_uri.host.s, msg->parsed_uri.host.len); + req_uri_str[len] = '\0'; + + LOG(L_INFO, "allow_ruting(): (module permissions) looking for FROM: %s Request URI: %s\n", from_str, req_uri_str); /* rule exists in allow file */ - if (search_rule(allow_rules, from_str, to_str)) return 1; + if (search_rule(allow_rules, from_str, req_uri_str)) { + LOG(L_INFO, "allow_ruting(): (module permissions) allow roule found => routing is allowed\n"); + return 1; + } /* rule exists in deny file */ - if (search_rule(deny_rules, from_str, to_str)) return -1; - + if (search_rule(deny_rules, from_str, req_uri_str)) { + LOG(L_INFO, "allow_ruting(): (module permissions) deny roule found => routing is denied\n"); + return -1; + } /* allow any other rule */ + LOG(L_INFO, "allow_ruting(): (module permissions) neither allow nor deny roule found => routing is allowed\n"); return 1; }