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Factor out code for handling SABM frames

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XANTRONIX Development 2020-06-29 00:29:50 -04:00 • committed by XANTRONIX Industrial
parent 17b2313edc
commit a60e562fdb
1 changed files with 35 additions and 25 deletions
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60
src/server.c
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@ -1115,6 +1115,40 @@ static int reply_ua(patty_ax25_if *iface,
return reply_to(iface, frame, &reply, PATTY_AX25_FRAME_NORMAL);
}
static int handle_sabm(patty_ax25_server *server,
patty_ax25_if *iface,
patty_ax25_frame *frame) {
patty_ax25_sock *sock;
if ((sock = sock_by_addr(server->socks_pending_accept,
&frame->dest)) == NULL) {
return reply_dm(iface, frame, PATTY_AX25_FRAME_U_FINAL);
}
sock->status = PATTY_AX25_SOCK_ESTABLISHED;
sock->mode = PATTY_AX25_SOCK_SABM;
save_reply_addr(sock, frame);
if (sock_save_by_addrpair(server->socks_established,
sock,
&sock->local,
&sock->remote) < 0) {
goto error_save_by_addrpair;
}
if (sock_delete_by_addr(server->socks_pending_accept,
&frame->dest) < 0) {
goto error_delete_by_addr;
}
return reply_ua(iface, frame, PATTY_AX25_FRAME_U_FINAL);
error_delete_by_addr:
error_save_by_addrpair:
return -1;
}
static int handle_frame(patty_ax25_server *server,
patty_ax25_if *iface,
void *buf,
@ -1131,31 +1165,7 @@ static int handle_frame(patty_ax25_server *server,
}
if (PATTY_AX25_CONTROL_UNNUMBERED_SABM(frame.control)) {
patty_ax25_sock *sock;
if ((sock = sock_by_addr(server->socks_pending_accept,
&frame.dest)) == NULL) {
if (reply_dm(iface, &frame, PATTY_AX25_FRAME_U_FINAL) < 0) {
goto error_io;
}
}
sock->status = PATTY_AX25_SOCK_ESTABLISHED;
sock->mode = PATTY_AX25_SOCK_SABM;
save_reply_addr(sock, &frame);
if (sock_save_by_addrpair(server->socks_established,
sock,
&sock->local,
&sock->remote) < 0) {
goto error_io;
}
if (sock_delete_by_addr(server->socks_pending_accept,
&frame.dest) < 0) {
goto error_io;
}
return handle_sabm(server, iface, &frame);
}
return 0;