[sr-dev] git:master: corex: new parameter alias_subdomains

Module: sip-router Branch: master Commit: eaed27161e36b0bec9bef2660d2fae80092a2e42 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=eaed271… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: Tue Sep 11 21:52:01 2012 +0200 corex: new parameter alias_subdomains - adds domain and all its subdomains to myself condition, registering a callback for check self event --- modules/corex/corex_lib.c | 123 +++++++++++++++++++++++++++++++++++++++++++++ modules/corex/corex_lib.h | 4 ++ modules/corex/corex_mod.c | 22 ++++++++ 3 files changed, 149 insertions(+), 0 deletions(-) diff --git a/modules/corex/corex_lib.c b/modules/corex/corex_lib.c index d8ad3c5..1f69847 100644 --- a/modules/corex/corex_lib.c +++ b/modules/corex/corex_lib.c @@ -26,6 +26,7 @@ #include "../../dprint.h" #include "../../dset.h" +#include "../../forward.h" #include "corex_lib.h" @@ -88,3 +89,125 @@ int corex_append_branch(sip_msg_t *msg, gparam_t *pu, gparam_t *pq) return ret; } + +typedef struct corex_alias { + str alias; + unsigned short port; + unsigned short proto; + int flags; + struct corex_alias* next; +} corex_alias_t; + +static corex_alias_t *_corex_alias_list = NULL; + +int corex_add_alias_subdomains(char* aliasval) +{ + char *p = NULL; + corex_alias_t ta; + corex_alias_t *na; + + memset(&ta, 0, sizeof(corex_alias_t)); + + p = strchr(aliasval, ':'); + if(p==NULL) { + /* only hostname */ + ta.alias.s = aliasval; + ta.alias.len = strlen(aliasval); + goto done; + } + if((p-aliasval)==3 || (p-aliasval)==4) { + /* check if it is protocol */ + if((p-aliasval)==3 && strncasecmp(aliasval, "udp", 3)==0) { + ta.proto = PROTO_UDP; + } else if((p-aliasval)==3 && strncasecmp(aliasval, "tcp", 3)==0) { + ta.proto = PROTO_TCP; + } else if((p-aliasval)==3 && strncasecmp(aliasval, "tls", 3)==0) { + ta.proto = PROTO_TLS; + } else if((p-aliasval)==4 && strncasecmp(aliasval, "sctp", 4)==0) { + ta.proto = PROTO_SCTP; + } else { + /* use hostname */ + ta.alias.s = aliasval; + ta.alias.len = p - aliasval; + } + } + if(ta.alias.len==0) { + p++; + if(p>=aliasval+strlen(aliasval)) + goto error; + ta.alias.s = p; + p = strchr(ta.alias.s, ':'); + if(p==NULL) { + ta.alias.len = strlen(ta.alias.s); + goto done; + } + } + /* port */ + p++; + if(p>=aliasval+strlen(aliasval)) + goto error; + ta.port = str2s(p, strlen(p), NULL); + +done: + if(ta.alias.len==0) + goto error; + + na = (corex_alias_t*)pkg_malloc(sizeof(corex_alias_t)); + if(na==NULL) { + LM_ERR("no memory for adding alias subdomains: %s\n", aliasval); + return -1; + } + memcpy(na, &ta, sizeof(corex_alias_t)); + na->next = _corex_alias_list; + _corex_alias_list = na; + + return 0; + +error: + LM_ERR("error adding alias subdomains: %s\n", aliasval); + return -1; +} + + +int corex_check_self(str* host, unsigned short port, unsigned short proto) +{ + corex_alias_t *ta; + + for(ta=_corex_alias_list; ta; ta=ta->next) { + if(host->len<ta->alias.len) + continue; + if(ta->port!=0 && port!=0 && ta->port!=port) + continue; + if(ta->proto!=0 && proto!=0 && ta->proto!=proto) + continue; + if(host->len==ta->alias.len + && strncasecmp(host->s, ta->alias.s, host->len)==0) { + /* match domain */ + LM_DBG("check self domain match: %d:%.*s:%d\n", (int)ta->port, + ta->alias.len, ta->alias.s, (int)ta->proto); + return 1; + } + if(strncasecmp(ta->alias.s, host->s + host->len - ta->alias.len, + ta->alias.len)==0) { + if(host->s[host->len - ta->alias.len - 1]=='.') { + /* match sub-domain */ + LM_DBG("check self sub-domain match: %d:%.*s:%d\n", (int)ta->port, + ta->alias.len, ta->alias.s, (int)ta->proto); + return 1; + } + } + } + + return 0; /* no match */ +} + +int corex_register_check_self(void) +{ + if(_corex_alias_list==NULL) + return 0; + if (register_check_self_func(corex_check_self) <0 ) { + LM_ERR("failed to register check self function\n"); + return -1; + } + return 0; +} diff --git a/modules/corex/corex_lib.h b/modules/corex/corex_lib.h index c997fce..49fa712 100644 --- a/modules/corex/corex_lib.h +++ b/modules/corex/corex_lib.h @@ -26,4 +26,8 @@ int corex_append_branch(sip_msg_t *msg, gparam_t *pu, gparam_t *pq); +int corex_add_alias_subdomains(char* aliasval); + +int corex_register_check_self(void); + #endif diff --git a/modules/corex/corex_mod.c b/modules/corex/corex_mod.c index 4fda1a2..5b4690c 100644 --- a/modules/corex/corex_mod.c +++ b/modules/corex/corex_mod.c @@ -35,6 +35,8 @@ MODULE_VERSION static int w_append_branch(sip_msg_t *msg, char *su, char *sq); +int corex_alias_subdomains_param(modparam_t type, void *val); + static int mod_init(void); static int child_init(int); static void mod_destroy(void); @@ -52,6 +54,8 @@ static cmd_export_t cmds[]={ }; static param_export_t params[]={ + {"alias_subdomains", STR_PARAM|USE_FUNC_PARAM, + (void*)corex_alias_subdomains_param}, {0, 0, 0} }; @@ -83,6 +87,12 @@ static int mod_init(void) return -1; } + if(corex_register_check_self()<0) + { + LM_ERR("failed to register check self callback\n"); + return -1; + } + return 0; } @@ -113,3 +123,15 @@ static int w_append_branch(sip_msg_t *msg, char *su, char *sq) return 1; } + +int corex_alias_subdomains_param(modparam_t type, void *val) +{ + if(val==NULL) + goto error; + + return corex_add_alias_subdomains((char*)val); +error: + return -1; + +} +