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/*
* SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen)
*
* On success, these system calls return a nonnegative integer that is a descriptor for the accepted socket.
* On error, -1 is returned, and errno is set appropriately.
*/
#include "net.h"
#include "sanitise.h"
static void sanitise_accept(struct syscallrecord *rec)
{
rec->a1 = fd_from_socketinfo((struct socketinfo *) rec->a1);
}
struct syscallentry syscall_accept = {
.name = "accept",
.num_args = 3,
.arg1name = "fd",
.arg1type = ARG_SOCKETINFO,
.arg2name = "upeer_sockaddr",
.arg2type = ARG_SOCKADDR,
.arg3name = "upeer_addrlen",
.arg3type = ARG_SOCKADDRLEN,
.rettype = RET_FD,
.flags = NEED_ALARM,
.sanitise = sanitise_accept,
};
/*
* SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
int __user *, upeer_addrlen, int, flags)
*
* On success, these system calls return a nonnegative integer that is a descriptor for the accepted socket.
* On error, -1 is returned, and errno is set appropriately.
*
*/
static unsigned long accept4_flags[] = {
SOCK_NONBLOCK, SOCK_CLOEXEC,
};
struct syscallentry syscall_accept4 = {
.name = "accept4",
.num_args = 4,
.arg1name = "fd",
.arg1type = ARG_SOCKETINFO,
.arg2name = "upeer_sockaddr",
.arg2type = ARG_SOCKADDR,
.arg3name = "upeer_addrlen",
.arg3type = ARG_SOCKADDRLEN,
.arg4name = "flags",
.arg4type = ARG_LIST,
.arg4list = ARGLIST(accept4_flags),
.rettype = RET_FD,
.flags = NEED_ALARM,
.sanitise = sanitise_accept, // use same as accept.
};
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