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socket-util: add sockopt helper for controlling IP_RECVFRAGSIZE

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This commit is contained in:
Lennart Poettering
2020-11-16 12:41:23 +01:00
parent e0f90ad988
commit 00ed2fff1a
2 changed files with 12 additions and 0 deletions
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8
src/basic/missing_socket.h
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@@ -67,6 +67,14 @@ struct sockaddr_vm {
#define IPV6_FREEBIND 78 #define IPV6_FREEBIND 78
#endif #endif
#ifndef IP_RECVFRAGSIZE
#define IP_RECVFRAGSIZE 25
#endif
#ifndef IPV6_RECVFRAGSIZE
#define IPV6_RECVFRAGSIZE 77
#endif
/* linux/sockios.h */ /* linux/sockios.h */
#ifndef SIOCGSKNS #ifndef SIOCGSKNS
#define SIOCGSKNS 0x894C #define SIOCGSKNS 0x894C

4
src/basic/socket-util.h
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@@ -266,6 +266,7 @@ ssize_t recvmsg_safe(int sockfd, struct msghdr *msg, int flags);
int socket_get_family(int fd, int *ret); int socket_get_family(int fd, int *ret);
int socket_set_recvpktinfo(int fd, int af, bool b); int socket_set_recvpktinfo(int fd, int af, bool b);
int socket_set_unicast_if(int fd, int af, int ifi); int socket_set_unicast_if(int fd, int af, int ifi);
int socket_set_option(int fd, int af, int opt_ipv4, int opt_ipv6, int val); int socket_set_option(int fd, int af, int opt_ipv4, int opt_ipv6, int val);
static inline int socket_set_recverr(int fd, int af, bool b) { static inline int socket_set_recverr(int fd, int af, bool b) {
return socket_set_option(fd, af, IP_RECVERR, IPV6_RECVERR, b); return socket_set_option(fd, af, IP_RECVERR, IPV6_RECVERR, b);
@@ -282,3 +283,6 @@ static inline int socket_set_freebind(int fd, int af, bool b) {
static inline int socket_set_transparent(int fd, int af, bool b) { static inline int socket_set_transparent(int fd, int af, bool b) {
return socket_set_option(fd, af, IP_TRANSPARENT, IPV6_TRANSPARENT, b); return socket_set_option(fd, af, IP_TRANSPARENT, IPV6_TRANSPARENT, b);
} }
static inline int socket_set_recvfragsize(int fd, int af, bool b) {
return socket_set_option(fd, af, IP_RECVFRAGSIZE, IPV6_RECVFRAGSIZE, b);
}