diff options
Diffstat (limited to 'channels/sip/include/reqresp_parser.h')
| -rw-r--r-- | channels/sip/include/reqresp_parser.h | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/channels/sip/include/reqresp_parser.h b/channels/sip/include/reqresp_parser.h index 8c8c59ad6..bb1831431 100644 --- a/channels/sip/include/reqresp_parser.h +++ b/channels/sip/include/reqresp_parser.h @@ -166,9 +166,43 @@ int sip_reqresp_parser_init(void); void sip_reqresp_parser_exit(void); /*! - * \brief Parse the VIA header into it's parts. - * - * \note This will modify the string + * \brief Parse a Via header + * + * This function parses the Via header and processes it according to section + * 18.2 of RFC 3261 and RFC 3581. Since we don't have a transport layer, we + * only care about the maddr and ttl parms. The received and rport params are + * not parsed. + * + * \note This function fails to parse some odd combinations of SWS in parameter + * lists. + * + * \code + * VIA syntax. RFC 3261 section 25.1 + * Via = ( "Via" / "v" ) HCOLON via-parm *(COMMA via-parm) + * via-parm = sent-protocol LWS sent-by *( SEMI via-params ) + * via-params = via-ttl / via-maddr + * / via-received / via-branch + * / via-extension + * via-ttl = "ttl" EQUAL ttl + * via-maddr = "maddr" EQUAL host + * via-received = "received" EQUAL (IPv4address / IPv6address) + * via-branch = "branch" EQUAL token + * via-extension = generic-param + * sent-protocol = protocol-name SLASH protocol-version + * SLASH transport + * protocol-name = "SIP" / token + * protocol-version = token + * transport = "UDP" / "TCP" / "TLS" / "SCTP" + * / other-transport + * sent-by = host [ COLON port ] + * ttl = 1*3DIGIT ; 0 to 255 + * \endcode + */ +struct sip_via *parse_via(const char *header); + +/* + * \brief Free parsed Via data. */ -void get_viabranch(char *via, char **sent_by, char **branch); +void free_via(struct sip_via *v); + #endif |