Module: kamailio Branch: master Commit: 0679bfd41f211850f153ae5e6a99efd82c60345e URL: https://github.com/kamailio/kamailio/commit/0679bfd41f211850f153ae5e6a99efd… Author: Alex Hermann &lt;alex(a)hexla.nl&gt; Committer: Henning Westerholt &lt;henningw(a)users.noreply.github.com&gt; Date: 2019-02-11T21:42:26+01:00 core/dset: Create contacts with flags as header parameter Add the branch flags to the Contact uri in a redirect (302). --- Modified: src/core/dset.c Modified: src/core/dset.h --- Diff: https://github.com/kamailio/kamailio/commit/0679bfd41f211850f153ae5e6a99efd… Patch: https://github.com/kamailio/kamailio/commit/0679bfd41f211850f153ae5e6a99efd… --- diff --git a/src/core/dset.c b/src/core/dset.c index d911515e0b..1803155206 100644 --- a/src/core/dset.c +++ b/src/core/dset.c @@ -53,6 +53,9 @@ #define ROUTE_PARAM "?Route=" #define ROUTE_PARAM_LEN (sizeof(ROUTE_PARAM) - 1) +#define FLAGS_PARAM ";flags=" +#define FLAGS_PARAM_LEN (sizeof(FLAGS_PARAM) - 1) + /* * Where we store URIs of additional transaction branches * (sr_dst_max_branches - 1 : because of the default branch for r-uri, #0 in tm) @@ -476,7 +479,7 @@ int append_branch(struct sip_msg* msg, str* uri, str* dst_uri, str* path, * end = end of target buffer * Returns 0 on success or -1 on error (buffer is too short) */ -static int print_contact_str(char **dest, str *uri, qvalue_t q, str *path, char *end, int options) +static int print_contact_str(char **dest, str *uri, qvalue_t q, str *path, unsigned int flags, char *end, int options) { char *p = *dest; str buf; @@ -521,6 +524,19 @@ static int print_contact_str(char **dest, str *uri, qvalue_t q, str *path, char memcpy(p, buf.s, buf.len); p += buf.len; } + + /* branch flags (not SIP standard conformant) */ + if (options & DS_FLAGS) { + buf.s = int2str(flags, &buf.len); + if (p + FLAGS_PARAM_LEN + buf.len > end) { + return -1; + } + memcpy(p, FLAGS_PARAM, FLAGS_PARAM_LEN); + p += FLAGS_PARAM_LEN; + memcpy(p, buf.s, buf.len); + p += buf.len; + } + *dest = p; return 0; } @@ -535,6 +551,7 @@ char* print_dset(struct sip_msg* msg, int* len, int options) int cnt = 0; qvalue_t q; str uri, path; + unsigned int flags; char *p; int crt_branch; static char dset[MAX_REDIRECTION_LEN]; @@ -552,7 +569,7 @@ char* print_dset(struct sip_msg* msg, int* len, int options) /* current uri */ if (msg->new_uri.s) { - if (print_contact_str(&p, &msg->new_uri, ruri_q, &msg->path_vec, end, options) < 0) { + if (print_contact_str(&p, &msg->new_uri, ruri_q, &msg->path_vec, ruri_bflags, end, options) < 0) { goto memfail; } cnt++; @@ -560,7 +577,7 @@ char* print_dset(struct sip_msg* msg, int* len, int options) /* branches */ init_branch_iterator(); - while ((uri.s = next_branch(&uri.len, &q, 0, &path, 0, 0, 0, 0, 0))) { + while ((uri.s = next_branch(&uri.len, &q, 0, &path, &flags, 0, 0, 0, 0))) { if (cnt > 0) { if (p + CONTACT_DELIM_LEN > end) { goto memfail; @@ -569,7 +586,7 @@ char* print_dset(struct sip_msg* msg, int* len, int options) p += CONTACT_DELIM_LEN; } - if (print_contact_str(&p, &uri, q, &path, end, options) < 0) { + if (print_contact_str(&p, &uri, q, &path, flags, end, options) < 0) { goto memfail; } diff --git a/src/core/dset.h b/src/core/dset.h index e09262c834..65b54c3104 100644 --- a/src/core/dset.h +++ b/src/core/dset.h @@ -37,6 +37,7 @@ extern unsigned int nr_branches; extern int ruri_is_new; +#define DS_FLAGS 1 #define DS_PATH 2 /*! \brief