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net: use IP_FREEBIND for server sockets

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This commit is contained in:
Thomas Schoebel-Theuer 2020-08-07 09:51:38 +02:00
parent 41507c7392
commit 27d3e9ff9b
1 changed files with 8 additions and 3 deletions
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11
kernel/mars_net.c
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@ -173,14 +173,19 @@ EXPORT_SYMBOL_GPL(mars_create_sockaddr);
static int current_debug_nr = 0; // no locking, just for debugging static int current_debug_nr = 0; // no locking, just for debugging
static static
void _set_socketopts(struct socket *sock, struct mars_tcp_params *params) void _set_socketopts(struct socket *sock, struct mars_tcp_params *params, bool is_server)
{ {
struct timeval t = { struct timeval t = {
.tv_sec = params->tcp_timeout, .tv_sec = params->tcp_timeout,
}; };
int x_true = 1; int x_true = 1;
/* TODO: improve this by a table-driven approach /* TODO: improve this by a table-driven approach
*/ */
if (is_server) {
/* extra options for server sockets */
_setsockopt(sock, SOL_SOCKET, IP_FREEBIND, x_true);
}
sock->sk->sk_rcvtimeo = sock->sk->sk_sndtimeo = params->tcp_timeout * HZ; sock->sk->sk_rcvtimeo = sock->sk->sk_sndtimeo = params->tcp_timeout * HZ;
sock->sk->sk_reuse = 1; sock->sk->sk_reuse = 1;
_setsockopt(sock, SOL_SOCKET, SO_SNDBUFFORCE, params->tcp_window_size); _setsockopt(sock, SOL_SOCKET, SO_SNDBUFFORCE, params->tcp_window_size);
@ -234,7 +239,7 @@ int mars_create_socket(struct mars_socket *msock,
msock->s_alive = true; msock->s_alive = true;
msock->s_connected = false; msock->s_connected = false;
_set_socketopts(sock, params); _set_socketopts(sock, params, is_server);
if (is_server) { if (is_server) {
status = kernel_bind(sock, sockaddr, sizeof(*sockaddr)); status = kernel_bind(sock, sockaddr, sizeof(*sockaddr));
@ -299,7 +304,7 @@ int mars_accept_socket(struct mars_socket *new_msock,
MARS_IO("old#%d status = %d file = %p flags = 0x%x\n", old_msock->s_debug_nr, status, new_socket->file, new_socket->file ? new_socket->file->f_flags : 0); MARS_IO("old#%d status = %d file = %p flags = 0x%x\n", old_msock->s_debug_nr, status, new_socket->file, new_socket->file ? new_socket->file->f_flags : 0);
_set_socketopts(new_socket, params); _set_socketopts(new_socket, params, false);
memset(new_msock, 0, sizeof(struct mars_socket)); memset(new_msock, 0, sizeof(struct mars_socket));
new_msock->s_socket = new_socket; new_msock->s_socket = new_socket;