From 41ce2d49645c6eb87f751c4df0b554f4388e73c3 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Thu, 18 Jun 2015 00:16:20 +0200 Subject: sock: Add dgram socket creation. LINKTYPE_LINUX_SLL needs datagram packet sockets. We'll need this function at a later point in time. Signed-off-by: Daniel Borkmann --- sock.c | 21 +++++++++++++++++++++ sock.h | 1 + 2 files changed, 22 insertions(+) diff --git a/sock.c b/sock.c index 7cfa4a0..cfca05e 100644 --- a/sock.c +++ b/sock.c @@ -8,6 +8,7 @@ #include "sock.h" #include "die.h" #include "str.h" +#include "linktype.h" #include "built_in.h" int af_socket(int af) @@ -33,6 +34,26 @@ int pf_socket(void) return sock; } +static int pf_socket_dgram(void) +{ + int sock = socket(PF_PACKET, SOCK_DGRAM, 0); + if (unlikely(sock < 0)) + panic("Creation of PF dgram socket failed: %s\n", + strerror(errno)); + + return sock; +} + +int pf_socket_type(uint32_t type) +{ + switch (type) { + case LINKTYPE_LINUX_SLL: + return pf_socket_dgram(); + default: + return pf_socket(); + } +} + /* Avail in kernel >= 3.14 * in commit d346a3fae3 (packet: introduce PACKET_QDISC_BYPASS socket option) */ diff --git a/sock.h b/sock.h index 50f7102..8f68d42 100644 --- a/sock.h +++ b/sock.h @@ -3,6 +3,7 @@ extern int af_socket(int af); extern int pf_socket(void); +extern int pf_socket_type(uint32_t type); extern void set_nonblocking(int fd); extern int set_nonblocking_sloppy(int fd); extern int set_reuseaddr(int fd); -- cgit v1.2.3-54-g00ecf