Module: sip-router Branch: master Commit: e008edb9772c08bb0a34dd719516f2a9b7b46115 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=e008edb9...

Author: Daniel-Constantin Mierla miconda@gmail.com Committer: Daniel-Constantin Mierla miconda@gmail.com Date: Fri Oct 17 11:04:23 2014 +0200

core: new parameter - max_branches

- the maximum number of uac branches can be set via config - default value is 12 (old static value for MAX_BRNACHES) - the upper limit is 31, it has to be at least 1 - example: max_branches=16

---

cfg.lex | 2 ++ cfg.y | 2 ++ config.h | 3 ++- dns_cache.h | 6 ++---- dset.c | 24 +++++++++++++++++++++--- dset.h | 2 ++ globals.h | 2 ++ main.c | 7 +++++++ 8 files changed, 40 insertions(+), 8 deletions(-)

diff --git a/cfg.lex b/cfg.lex index 1d5e40a..15cd19d 100644 --- a/cfg.lex +++ b/cfg.lex @@ -489,6 +489,7 @@ VERSION_TABLE_CFG "version_table" SERVER_ID "server_id"

MAX_RECURSIVE_LEVEL "max_recursive_level" +MAX_BRANCHES_PARAM "max_branches"|"max_branches"

LATENCY_LOG latency_log LATENCY_LIMIT_DB latency_limit_db @@ -936,6 +937,7 @@ IMPORTFILE "import_file" <INITIAL>{VERSION_TABLE_CFG} { count(); yylval.strval=yytext; return VERSION_TABLE_CFG;} <INITIAL>{SERVER_ID} { count(); yylval.strval=yytext; return SERVER_ID;} <INITIAL>{MAX_RECURSIVE_LEVEL} { count(); yylval.strval=yytext; return MAX_RECURSIVE_LEVEL;} +<INITIAL>{MAX_BRANCHES_PARAM} { count(); yylval.strval=yytext; return MAX_BRANCHES_PARAM;} <INITIAL>{LATENCY_LOG} { count(); yylval.strval=yytext; return LATENCY_LOG;} <INITIAL>{MSG_TIME} { count(); yylval.strval=yytext; return MSG_TIME;} <INITIAL>{ONSEND_RT_REPLY} { count(); yylval.strval=yytext; return ONSEND_RT_REPLY; } diff --git a/cfg.y b/cfg.y index 6a85292..7184191 100644 --- a/cfg.y +++ b/cfg.y @@ -543,6 +543,7 @@ extern char *default_routename; %token CFG_DESCRIPTION %token SERVER_ID %token MAX_RECURSIVE_LEVEL +%token MAX_BRANCHES_PARAM %token LATENCY_LOG %token LATENCY_LIMIT_DB %token LATENCY_LIMIT_ACTION @@ -1572,6 +1573,7 @@ assign_stm: | HTTP_REPLY_PARSE EQUAL error { yyerror("boolean value expected"); } | SERVER_ID EQUAL NUMBER { server_id=$3; } | MAX_RECURSIVE_LEVEL EQUAL NUMBER { set_max_recursive_level($3); } + | MAX_BRANCHES_PARAM EQUAL NUMBER { sr_dst_max_branches = $3; } | LATENCY_LOG EQUAL NUMBER { default_core_cfg.latency_log=$3; } | LATENCY_LOG EQUAL error { yyerror("number expected"); } | LATENCY_LIMIT_DB EQUAL NUMBER { default_core_cfg.latency_limit_db=$3; } diff --git a/config.h b/config.h index 172ee7d..23880a0 100644 --- a/config.h +++ b/config.h @@ -169,7 +169,8 @@ #define MAX_RECEIVED_SIZE 59 /*!< forwarding -- Via buffer dimensioning - Received header */ #define MAX_RPORT_SIZE 13 /*!< forwarding -- Via buffer dimensioning - Rport */

-#define MAX_BRANCHES 12 /*!< maximum number of branches per transaction */ +#define MAX_BRANCHES_DEFAULT 12 /*!< default maximum number of branches per transaction */ +#define MAX_BRANCHES_LIMIT 32 /*!< limit of maximum number of branches per transaction */

#define MAX_PRINT_TEXT 256 /*!< max length of the text of fifo 'print' command */

diff --git a/dns_cache.h b/dns_cache.h index e93b59b..b697b7c 100644 --- a/dns_cache.h +++ b/dns_cache.h @@ -166,10 +166,8 @@ struct dns_hash_entry{ };

-#if MAX_BRANCHES < 16 -/* forking is limited by tm to 12 by default */ -typedef unsigned short srv_flags_t; -#elif MAX_BRANCHES < 32 +/* to fit in the limit of MAX_BRANCHES */ +#if MAX_BRANCHES_LIMIT < 32 typedef unsigned int srv_flags_t; #else typedef unsigned long long srv_flags_t; diff --git a/dset.c b/dset.c index 8e7410e..43e28db 100644 --- a/dset.c +++ b/dset.c @@ -39,6 +39,7 @@ #include "parser/parser_f.h" #include "parser/parse_uri.h" #include "parser/msg_parser.h" +#include "globals.h" #include "ut.h" #include "hash_func.h" #include "error.h" @@ -58,9 +59,9 @@

/* * Where we store URIs of additional transaction branches - * (-1 because of the default branch, #0) + * (sr_dst_max_branches - 1 : because of the default branch for r-uri, #0 in tm) */ -static struct branch branches[MAX_BRANCHES - 1]; +static struct branch *branches = NULL;

/* how many of them we have */ unsigned int nr_branches = 0; @@ -78,6 +79,23 @@ static qvalue_t ruri_q = Q_UNSPECIFIED; static flag_t ruri_bflags;

+int init_dst_set(void) +{ + if(sr_dst_max_branches<=0 || sr_dst_max_branches>=MAX_BRANCHES_LIMIT) { + LM_ERR("invalid value for max branches parameter: %u\n", + sr_dst_max_branches); + return -1; + } + /* sr_dst_max_branches - 1 : because of the default branch for r-uri, #0 in tm */ + branches = (branch_t*)pkg_malloc((sr_dst_max_branches-1)*sizeof(branch_t)); + if(branches==NULL) { + LM_ERR("not enough memory to initialize destination branches\n"); + return -1; + } + memset(branches, 0, (sr_dst_max_branches-1)*sizeof(branch_t)); + return 0; +} + /*! \brief * Return pointer to branch[idx] structure * @param idx - branch index @@ -333,7 +351,7 @@ int append_branch(struct sip_msg* msg, str* uri, str* dst_uri, str* path, /* if we have already set up the maximum number * of branches, don't try new ones */ - if (unlikely(nr_branches == MAX_BRANCHES - 1)) { + if (unlikely(nr_branches == sr_dst_max_branches - 1)) { LM_ERR("max nr of branches exceeded\n"); ser_error = E_TOO_MANY_BRANCHES; return -1; diff --git a/dset.h b/dset.h index ff7e838..d90ce61 100644 --- a/dset.h +++ b/dset.h @@ -258,4 +258,6 @@ int setbflagsval(unsigned int branch, flag_t val); int uri_add_rcv_alias(sip_msg_t *msg, str *uri, str *nuri); int uri_restore_rcv_alias(str *uri, str *nuri, str *suri);

+int init_dst_set(void); + #endif /* _DSET_H */ diff --git a/globals.h b/globals.h index 0a62d3e..1dc4194 100644 --- a/globals.h +++ b/globals.h @@ -50,6 +50,8 @@ extern int config_check; extern char* stat_file; extern unsigned short port_no;

+extern unsigned int sr_dst_max_branches; /* max number of branches per transaction */ + extern time_t up_since; extern pid_t creator_pid; /* pid of first process before daemonization */ extern int uid; diff --git a/main.c b/main.c index 5aebc79..2e9d9fc 100644 --- a/main.c +++ b/main.c @@ -424,6 +424,9 @@ int sock_mode= S_IRUSR| S_IWUSR| S_IRGRP| S_IWGRP; /* rw-rw---- */

int server_id = 0; /* Configurable unique ID of the server */

+/* maximum number of branches for transaction */ +unsigned int sr_dst_max_branches = MAX_BRANCHES_DEFAULT; + /* set timeval for each received sip message */ int sr_msg_time = 1;

@@ -2119,6 +2122,10 @@ try_again: pp_ifdef_level_check(); print_rls();

+ if(init_dst_set()<0) { + LM_ERR("failed to initialize destination set structure\n"); + goto error; + } /* options with higher priority than cfg file */ optind = 1; /* reset getopt */ while((c=getopt(argc,argv,options))!=-1) {