| James Kuszmaul | 82f6c04 | 2021-01-17 11:30:16 -0800 | [diff] [blame^] | 1 | /** |
| 2 | * @file info.c SIP Session Info |
| 3 | * |
| 4 | * Copyright (C) 2010 Creytiv.com |
| 5 | */ |
| 6 | #include <re_types.h> |
| 7 | #include <re_mem.h> |
| 8 | #include <re_mbuf.h> |
| 9 | #include <re_sa.h> |
| 10 | #include <re_list.h> |
| 11 | #include <re_hash.h> |
| 12 | #include <re_fmt.h> |
| 13 | #include <re_uri.h> |
| 14 | #include <re_tmr.h> |
| 15 | #include <re_msg.h> |
| 16 | #include <re_sip.h> |
| 17 | #include <re_sipsess.h> |
| 18 | #include "sipsess.h" |
| 19 | |
| 20 | |
| 21 | static int info_request(struct sipsess_request *req); |
| 22 | |
| 23 | |
| 24 | static void info_resp_handler(int err, const struct sip_msg *msg, void *arg) |
| 25 | { |
| 26 | struct sipsess_request *req = arg; |
| 27 | |
| 28 | if (err || sip_request_loops(&req->ls, msg->scode)) |
| 29 | goto out; |
| 30 | |
| 31 | if (msg->scode < 200) { |
| 32 | return; |
| 33 | } |
| 34 | else if (msg->scode < 300) { |
| 35 | ; |
| 36 | } |
| 37 | else { |
| 38 | if (req->sess->terminated) |
| 39 | goto out; |
| 40 | |
| 41 | switch (msg->scode) { |
| 42 | |
| 43 | case 401: |
| 44 | case 407: |
| 45 | err = sip_auth_authenticate(req->sess->auth, msg); |
| 46 | if (err) { |
| 47 | err = (err == EAUTH) ? 0 : err; |
| 48 | break; |
| 49 | } |
| 50 | |
| 51 | err = info_request(req); |
| 52 | if (err) |
| 53 | break; |
| 54 | |
| 55 | return; |
| 56 | |
| 57 | case 408: |
| 58 | case 481: |
| 59 | sipsess_terminate(req->sess, 0, msg); |
| 60 | break; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | out: |
| 65 | if (!req->sess->terminated) { |
| 66 | if (err == ETIMEDOUT) |
| 67 | sipsess_terminate(req->sess, err, NULL); |
| 68 | else |
| 69 | req->resph(err, msg, req->arg); |
| 70 | } |
| 71 | |
| 72 | mem_deref(req); |
| 73 | } |
| 74 | |
| 75 | |
| 76 | static int info_request(struct sipsess_request *req) |
| 77 | { |
| 78 | return sip_drequestf(&req->req, req->sess->sip, true, "INFO", |
| 79 | req->sess->dlg, 0, req->sess->auth, |
| 80 | NULL, info_resp_handler, req, |
| 81 | "Content-Type: %s\r\n" |
| 82 | "Content-Length: %zu\r\n" |
| 83 | "\r\n" |
| 84 | "%b", |
| 85 | req->ctype, |
| 86 | mbuf_get_left(req->body), |
| 87 | mbuf_buf(req->body), mbuf_get_left(req->body)); |
| 88 | } |
| 89 | |
| 90 | |
| 91 | /** |
| 92 | * Send a SIP INFO request in the SIP Session |
| 93 | * |
| 94 | * @param sess SIP Session |
| 95 | * @param ctype Content-type |
| 96 | * @param body Content description (e.g. SDP) |
| 97 | * @param resph Response handler |
| 98 | * @param arg Handler argument |
| 99 | * |
| 100 | * @return 0 if success, otherwise errorcode |
| 101 | */ |
| 102 | int sipsess_info(struct sipsess *sess, const char *ctype, struct mbuf *body, |
| 103 | sip_resp_h *resph, void *arg) |
| 104 | { |
| 105 | struct sipsess_request *req; |
| 106 | int err; |
| 107 | |
| 108 | if (!sess || sess->terminated || !ctype || !body) |
| 109 | return EINVAL; |
| 110 | |
| 111 | if (!sip_dialog_established(sess->dlg)) |
| 112 | return ENOTCONN; |
| 113 | |
| 114 | err = sipsess_request_alloc(&req, sess, ctype, body, resph, arg); |
| 115 | if (err) |
| 116 | return err; |
| 117 | |
| 118 | err = info_request(req); |
| 119 | if (err) |
| 120 | mem_deref(req); |
| 121 | |
| 122 | return err; |
| 123 | } |