[sr-dev] git:5.3:0bff74a1: rtpengine: add CRC32 hash algo (#2558)

Module: kamailio Branch: 5.3 Commit: 0bff74a16bb991ffe8c6690133414c5c9126bd1f URL: https://github.com/kamailio/kamailio/commit/0bff74a16bb991ffe8c6690133414c5… Author: Stefan Mititelu &lt;stefan-cristian.mititelu(a)1and1.ro&gt; Committer: Stefan Mititelu &lt;stefan-cristian.mititelu(a)1and1.ro&gt; Date: 2020-11-26T09:09:58+02:00 rtpengine: add CRC32 hash algo (#2558) (cherry picked from commit 10349080490faabffaf1ab7cc5d591678b8c94dd) --- Modified: src/modules/rtpengine/doc/rtpengine_admin.xml Modified: src/modules/rtpengine/rtpengine.c Modified: src/modules/rtpengine/rtpengine.h --- Diff: https://github.com/kamailio/kamailio/commit/0bff74a16bb991ffe8c6690133414c5… Patch: https://github.com/kamailio/kamailio/commit/0bff74a16bb991ffe8c6690133414c5… --- diff --git a/src/modules/rtpengine/doc/rtpengine_admin.xml b/src/modules/rtpengine/doc/rtpengine_admin.xml index cafd6b6ef4..6c4c932b99 100644 --- a/src/modules/rtpengine/doc/rtpengine_admin.xml +++ b/src/modules/rtpengine/doc/rtpengine_admin.xml @@ -2012,13 +2012,14 @@ modparam("rtpengine", "control_cmd_tos", 144) <title><varname>hash_algo</varname> (integer)</title> <para> Hashing algorithm to be used in node selection algorithm. Now there are 2 possibilities: legacy - alogrithm - 0(very basic hash over callid) or SHA1 - 1(apply sha1 over the callid and calculate hash). + algorithm - 0(very basic hash over callid), SHA1 - 1(apply sha1 over the callid and calculate hash) or + CRC32 - 2(calculate crc32 sum over the callid). </para> <para> Default value is 0, legacy algorithm. </para> <para> - The values not falling into the range <quote>0-1</quote> . + The values not falling into the range <quote>0-2</quote> are ignored. </para> <example> <title>Set <varname>control_cmd_tos</varname> parameter</title> @@ -2026,6 +2027,9 @@ modparam("rtpengine", "control_cmd_tos", 144) ... ### use SHA1 instead of legacy algorithm modparam("rtpengine", "hash_algo", 1) + +### use CRC32 instead of legacy algorithm +modparam("rtpengine", "hash_algo", 2) ... </programlisting> </example> diff --git a/src/modules/rtpengine/rtpengine.c b/src/modules/rtpengine/rtpengine.c index 8b72e5b675..3044fe4b07 100644 --- a/src/modules/rtpengine/rtpengine.c +++ b/src/modules/rtpengine/rtpengine.c @@ -2943,6 +2943,9 @@ select_rtpp_node_new(str callid, str viabranch, int do_test, struct rtpp_node ** } break; + case RTP_HASH_CRC32_CALLID: + crc32_uint(&callid, &sum); + goto retry; default: LM_ERR("unknown hashing algo %d\n", hash_algo); return NULL; @@ -2960,6 +2963,7 @@ select_rtpp_node_new(str callid, str viabranch, int do_test, struct rtpp_node ** } retry: + LM_DBG("sum is = %u\n", sum); weight_sum = 0; lock_get(active_rtpp_set->rset_lock); diff --git a/src/modules/rtpengine/rtpengine.h b/src/modules/rtpengine/rtpengine.h index 8a29210db2..bea421ee9d 100644 --- a/src/modules/rtpengine/rtpengine.h +++ b/src/modules/rtpengine/rtpengine.h @@ -102,6 +102,6 @@ extern str rtpp_url_col; extern str rtpp_weight_col; extern str rtpp_disabled_col; -enum hash_algo_t { RTP_HASH_CALLID, RTP_HASH_SHA1_CALLID}; +enum hash_algo_t { RTP_HASH_CALLID, RTP_HASH_SHA1_CALLID, RTP_HASH_CRC32_CALLID }; #endif