[sr-dev] git:master:2ce57c44: dispatcher: new algorithm - parallel dispatching (12)

Module: kamailio Branch: master Commit: 2ce57c44fee4eef112163e5dd6c712a0c68c79af URL: https://github.com/kamailio/kamailio/commit/2ce57c44fee4eef112163e5dd6c712a… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2017-08-03T19:05:59+02:00 dispatcher: new algorithm - parallel dispatching (12) - send the request to all destinations from the setid at once - aka parallel forking to all address, so the AVPs are no longer set, not being needed for a re-routing --- Modified: src/modules/dispatcher/dispatch.c --- Diff: https://github.com/kamailio/kamailio/commit/2ce57c44fee4eef112163e5dd6c712a… Patch: https://github.com/kamailio/kamailio/commit/2ce57c44fee4eef112163e5dd6c712a… --- diff --git a/src/modules/dispatcher/dispatch.c b/src/modules/dispatcher/dispatch.c index 90d670d8b7..0acf264618 100644 --- a/src/modules/dispatcher/dispatch.c +++ b/src/modules/dispatcher/dispatch.c @@ -75,6 +75,7 @@ #define DS_ALG_WEIGHT 9 #define DS_ALG_CALLLOAD 10 #define DS_ALG_RELWEIGHT 11 +#define DS_ALG_PARALLEL 12 static int _ds_table_version = DS_TABLE_VERSION; @@ -1693,6 +1694,86 @@ static inline int ds_update_dst( /** * */ +int ds_add_branches(sip_msg_t *msg, ds_set_t *idx, unsigned int hash, int mode) +{ + unsigned int i = 0; + str ruri = STR_NULL; + sip_uri_t *puri = NULL; + char buri[MAX_URI_SIZE]; + + if(hash+1>=idx->nr) { + /* nothing to add */ + return 0; + } + + if(mode==1) { + /* ruri updates */ + LM_DBG("adding branches with ruri\n"); + if(parse_sip_msg_uri(msg)<0) { + LM_ERR("failed to parse sip msg uri\n"); + return -1; + } + puri = &msg->parsed_uri; + } else { + /* duri updates */ + LM_DBG("adding branches with duri\n"); + } + for(i=hash+1; i<idx->nr; i++) { + if(mode==1) { + /* ruri updates */ + if(puri->user.len<=0) { + /* no username to preserve */ + if(append_branch(msg, &idx->dlist[i].uri, NULL, NULL, + Q_UNSPECIFIED, 0, idx->dlist[i].sock, NULL, 0, + NULL, NULL)<0) { + LM_ERR("failed to add branch with ruri\n"); + return -1; + } + } else { + /* new uri from ruri username and dispatcher uri */ + if(idx->dlist[i].uri.len<6) { + LM_WARN("invalid dispatcher uri - skipping (%u)\n", i); + continue; + } + if(strncmp(idx->dlist[i].uri.s, "sips:", 5)==0) { + ruri.len = snprintf(buri, MAX_URI_SIZE, "sips:%.*s@%.*s", + puri->user.len, puri->user.s, + idx->dlist[i].uri.len-5, idx->dlist[i].uri.s+5); + } else { + if(strncmp(idx->dlist[i].uri.s, "sip:", 4)==0) { + ruri.len = snprintf(buri, MAX_URI_SIZE, "sip:%.*s@%.*s", + puri->user.len, puri->user.s, + idx->dlist[i].uri.len-4, idx->dlist[i].uri.s+4); + } else { + LM_WARN("unsupported protocol schema - ignoring\n"); + continue; + } + } + ruri.s = buri; + if(append_branch(msg, &ruri, NULL, NULL, + Q_UNSPECIFIED, 0, idx->dlist[i].sock, NULL, 0, + NULL, NULL)<0) { + LM_ERR("failed to add branch with user ruri\n"); + return -1; + } + } + } else { + /* duri updates */ + if(append_branch(msg, GET_RURI(msg), &idx->dlist[i].uri, NULL, + Q_UNSPECIFIED, 0, idx->dlist[i].sock, NULL, 0, + NULL, NULL)<0) { + LM_ERR("failed to add branch with duri\n"); + return -1; + } + } + + } + return 0; +} + +/** + * + */ int ds_select_dst(struct sip_msg *msg, int set, int alg, int mode) { return ds_select_dst_limit(msg, set, alg, 0, mode); @@ -1839,6 +1920,9 @@ int ds_select_dst_limit( hash = idx->rwlist[idx->rwlast]; idx->rwlast = (idx->rwlast + 1) % 100; break; + case DS_ALG_PARALLEL: /* 12 - parallel dispatching */ + hash = 0; + break; default: LM_WARN("algo %d not implemented - using first entry...\n", alg); hash = 0; @@ -1887,6 +1971,15 @@ int ds_select_dst_limit( LM_DBG("selected [%d-%d/%d] <%.*s>\n", alg, set, hash, idx->dlist[hash].uri.len, idx->dlist[hash].uri.s); + if(alg == DS_ALG_PARALLEL) { + if(ds_add_branches(msg, idx, hash, mode)<0) { + LM_ERR("failed to add additional branches\n"); + /* one destination was already set - return success anyhow */ + return 2; + } + return 1; + } + if(!(ds_flags & DS_FAILOVER_ON)) return 1;