libosmo-netif  1.6.0.8-2f60.202506232026
Osmocom network interface library
stream_private.h
1 #pragma once
2 
3 #include <stdbool.h>
4 #include <stdint.h>
5 
6 #include <osmocom/core/socket.h>
7 
8 #include "config.h"
9 
10 #ifdef HAVE_LIBSCTP
11 #include <netinet/sctp.h>
12  #define OSMO_STREAM_MAX_ADDRS OSMO_SOCK_MAX_ADDRS
13  /*
14  * Platforms that don't have MSG_NOSIGNAL (which disables SIGPIPE)
15  * usually have SO_NOSIGPIPE (set via setsockopt).
16  */
17  #ifndef MSG_NOSIGNAL
18  #define MSG_NOSIGNAL 0
19  #endif
20 #else
21  #define OSMO_STREAM_MAX_ADDRS 1
22 #endif
23 
26 enum osmo_stream_mode {
27  OSMO_STREAM_MODE_UNKNOWN,
28  OSMO_STREAM_MODE_OSMO_FD,
29  OSMO_STREAM_MODE_OSMO_IO,
30 };
31 
32 struct stream_tcp_keepalive_pars {
33  bool enable;
34  bool time_present;
35  bool intvl_present;
36  bool probes_present;
37  int time_value; /* seconds */
38  int intvl_value; /* seconds */
39  int probes_value;
40 };
41 int stream_setsockopt_tcp_keepalive(int fd, int on);
42 int stream_setsockopt_tcp_keepidle(int fd, int keepalive_time);
43 int stream_setsockopt_tcp_keepintvl(int fd, int keepalive_intvl);
44 int stream_setsockopt_tcp_keepcnt(int fd, int keepalive_probes);
45 int stream_tcp_keepalive_pars_apply(int fd, const struct stream_tcp_keepalive_pars *tkp);
46 
47 struct stream_tcp_pars {
48  struct stream_tcp_keepalive_pars ka;
49  bool user_timeout_present;
50  unsigned int user_timeout_value;
51 };
52 int stream_setsockopt_tcp_user_timeout(int fd, unsigned int user_timeout);
53 
54 struct osmo_io_fd;
55 struct msghdr;
56 
57 int stream_sctp_sock_activate_events(int fd);
58 int stream_setsockopt_nodelay(int fd, int proto, int on);
59 int stream_sctp_recvmsg_wrapper(int fd, struct msgb *msg, const char *log_pfx);
60 
61 int stream_iofd_sctp_send_msgb(struct osmo_io_fd *iofd, struct msgb *msg, int sendmsg_flags);
62 int stream_iofd_sctp_recvmsg_trailer(struct osmo_io_fd *iofd, struct msgb *msg, int ret, const struct msghdr *msgh);
63