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api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.

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This commit is contained in:
fbernon 2007-03-30 09:42:16 +00:00
parent 4208bcd8d1
commit f1412f5e5a
2 changed files with 66 additions and 127 deletions
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4
CHANGELOG
View File

@ -98,6 +98,10 @@ HISTORY
++ Bug fixes:
2007-03-30 Frédéric Bernon
* api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2007-03-30 Frédéric Bernon
* most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
others environment defines (these were too "generic").

189
src/api/api_msg.c
View File

@ -68,7 +68,8 @@ recv_raw(void *arg, struct raw_pcb *pcb, struct pbuf *p,
return 0; /* do not eat the packet */
}
#endif
#endif /* LWIP_RAW*/
#if LWIP_UDP
static void
recv_udp(void *arg, struct udp_pcb *pcb, struct pbuf *p,
@ -105,6 +106,7 @@ recv_udp(void *arg, struct udp_pcb *pcb, struct pbuf *p,
}
}
#endif /* LWIP_UDP */
#if LWIP_TCP
static err_t
@ -271,24 +273,16 @@ accept_function(void *arg, struct tcp_pcb *newpcb, err_t err)
newconn->recv_avail = 0;
#if LWIP_SO_RCVTIMEO
newconn->recv_timeout = 0;
#endif /* LWIP_SO_RCVTIMEO */
#endif /* LWIP_SO_RCVTIMEO */
sys_mbox_post( conn->acceptmbox, newconn);
return ERR_OK;
}
#endif /* LWIP_TCP */
static void
do_newconn(struct api_msg_msg *msg)
static err_t
pcb_new(struct api_msg_msg *msg)
{
if(msg->conn->pcb.tcp != NULL) {
/* This "new" connection already has a PCB allocated. */
/* Is this an error condition? Should it be deleted?
We currently just are happy and return. */
sys_mbox_post(msg->conn->mbox, NULL);
return;
}
msg->conn->err = ERR_OK;
/* Allocate a PCB for this connection */
@ -296,9 +290,13 @@ do_newconn(struct api_msg_msg *msg)
#if LWIP_RAW
case NETCONN_RAW:
msg->conn->pcb.raw = raw_new(msg->msg.bc.port); /* misusing the port field */
if(msg->conn->pcb.raw == NULL) {
msg->conn->err = ERR_MEM;
break;
}
raw_recv(msg->conn->pcb.raw, recv_raw, msg->conn);
break;
#endif
break;
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDPLITE:
msg->conn->pcb.udp = udp_new();
@ -336,12 +334,24 @@ do_newconn(struct api_msg_msg *msg)
}
setup_tcp(msg->conn);
break;
#endif
#endif /* LWIP_TCP */
}
sys_mbox_post(msg->conn->mbox, NULL);
return msg->conn->err;
}
static void
do_newconn(struct api_msg_msg *msg)
{
if(msg->conn->pcb.tcp == NULL) {
pcb_new(msg);
}
/* Else? This "new" connection already has a PCB allocated. */
/* Is this an error condition? Should it be deleted? */
/* We currently just are happy and return. */
sys_mbox_post(msg->conn->mbox, NULL);
}
static void
do_delconn(struct api_msg_msg *msg)
@ -352,7 +362,7 @@ do_delconn(struct api_msg_msg *msg)
case NETCONN_RAW:
raw_remove(msg->conn->pcb.raw);
break;
#endif
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDPLITE:
/* FALLTHROUGH */
@ -363,23 +373,23 @@ do_delconn(struct api_msg_msg *msg)
udp_remove(msg->conn->pcb.udp);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
#if LWIP_TCP
case NETCONN_TCP:
if (msg->conn->pcb.tcp->state == LISTEN) {
tcp_arg(msg->conn->pcb.tcp, NULL);
tcp_accept(msg->conn->pcb.tcp, NULL);
tcp_accept(msg->conn->pcb.tcp, NULL);
tcp_close(msg->conn->pcb.tcp);
} else {
tcp_arg(msg->conn->pcb.tcp, NULL);
tcp_sent(msg->conn->pcb.tcp, NULL);
tcp_recv(msg->conn->pcb.tcp, NULL);
tcp_recv(msg->conn->pcb.tcp, NULL);
tcp_poll(msg->conn->pcb.tcp, NULL, 0);
tcp_err(msg->conn->pcb.tcp, NULL);
if (tcp_close(msg->conn->pcb.tcp) != ERR_OK) {
tcp_abort(msg->conn->pcb.tcp);
}
}
#endif
#endif /* LWIP_TCP */
default:
break;
}
@ -399,64 +409,37 @@ static void
do_bind(struct api_msg_msg *msg)
{
if (msg->conn->pcb.tcp == NULL) {
pcb_new(msg);
}
if (msg->conn->pcb.tcp != NULL) {
switch (msg->conn->type) {
#if LWIP_RAW
case NETCONN_RAW:
msg->conn->pcb.raw = raw_new(msg->msg.bc.port); /* misusing the port field as protocol */
raw_recv(msg->conn->pcb.raw, recv_raw, msg->conn);
msg->conn->err = raw_bind(msg->conn->pcb.raw,msg->msg.bc.ipaddr);
break;
#endif
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDPLITE:
msg->conn->pcb.udp = udp_new();
udp_setflags(msg->conn->pcb.udp, UDP_FLAGS_UDPLITE);
udp_recv(msg->conn->pcb.udp, recv_udp, msg->conn);
break;
/* FALLTHROUGH */
case NETCONN_UDPNOCHKSUM:
msg->conn->pcb.udp = udp_new();
udp_setflags(msg->conn->pcb.udp, UDP_FLAGS_NOCHKSUM);
udp_recv(msg->conn->pcb.udp, recv_udp, msg->conn);
break;
/* FALLTHROUGH */
case NETCONN_UDP:
msg->conn->pcb.udp = udp_new();
udp_recv(msg->conn->pcb.udp, recv_udp, msg->conn);
msg->conn->err = udp_bind(msg->conn->pcb.udp, msg->msg.bc.ipaddr, msg->msg.bc.port);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
case NETCONN_TCP:
msg->conn->pcb.tcp = tcp_new();
setup_tcp(msg->conn);
#endif /* LWIP_TCP */
default:
break;
}
}
switch (msg->conn->type) {
#if LWIP_RAW
case NETCONN_RAW:
msg->conn->err = raw_bind(msg->conn->pcb.raw,msg->msg.bc.ipaddr);
break;
#endif
#if LWIP_UDP
case NETCONN_UDPLITE:
/* FALLTHROUGH */
case NETCONN_UDPNOCHKSUM:
/* FALLTHROUGH */
case NETCONN_UDP:
msg->conn->err = udp_bind(msg->conn->pcb.udp, msg->msg.bc.ipaddr, msg->msg.bc.port);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
case NETCONN_TCP:
msg->conn->err = tcp_bind(msg->conn->pcb.tcp, msg->msg.bc.ipaddr, msg->msg.bc.port);
case NETCONN_TCP:
msg->conn->err = tcp_bind(msg->conn->pcb.tcp, msg->msg.bc.ipaddr, msg->msg.bc.port);
#endif /* LWIP_TCP */
default:
break;
default:
break;
}
}
sys_mbox_post(msg->conn->mbox, NULL);
}
#if LWIP_TCP
#if LWIP_TCP
static err_t
do_connected(void *arg, struct tcp_pcb *pcb, err_t err)
{
@ -477,70 +460,25 @@ do_connected(void *arg, struct tcp_pcb *pcb, err_t err)
sys_mbox_post(conn->mbox, NULL);
return ERR_OK;
}
#endif
#endif /* LWIP_TCP */
static void
do_connect(struct api_msg_msg *msg)
{
if (msg->conn->pcb.tcp == NULL) {
switch (msg->conn->type) {
#if LWIP_RAW
case NETCONN_RAW:
msg->conn->pcb.raw = raw_new(msg->msg.bc.port); /* misusing the port field as protocol */
raw_recv(msg->conn->pcb.raw, recv_raw, msg->conn);
break;
#endif
#if LWIP_UDP
case NETCONN_UDPLITE:
msg->conn->pcb.udp = udp_new();
if (msg->conn->pcb.udp == NULL) {
msg->conn->err = ERR_MEM;
sys_mbox_post(msg->conn->mbox, NULL);
return;
}
udp_setflags(msg->conn->pcb.udp, UDP_FLAGS_UDPLITE);
udp_recv(msg->conn->pcb.udp, recv_udp, msg->conn);
break;
case NETCONN_UDPNOCHKSUM:
msg->conn->pcb.udp = udp_new();
if (msg->conn->pcb.udp == NULL) {
msg->conn->err = ERR_MEM;
sys_mbox_post(msg->conn->mbox, NULL);
return;
}
udp_setflags(msg->conn->pcb.udp, UDP_FLAGS_NOCHKSUM);
udp_recv(msg->conn->pcb.udp, recv_udp, msg->conn);
break;
case NETCONN_UDP:
msg->conn->pcb.udp = udp_new();
if (msg->conn->pcb.udp == NULL) {
msg->conn->err = ERR_MEM;
sys_mbox_post(msg->conn->mbox, NULL);
return;
}
udp_recv(msg->conn->pcb.udp, recv_udp, msg->conn);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
case NETCONN_TCP:
msg->conn->pcb.tcp = tcp_new();
if (msg->conn->pcb.tcp == NULL) {
msg->conn->err = ERR_MEM;
sys_mbox_post(msg->conn->mbox, NULL);
return;
}
#endif
default:
break;
if (pcb_new(msg)!=ERR_OK) {
sys_mbox_post(msg->conn->mbox, NULL);
return;
}
}
switch (msg->conn->type) {
#if LWIP_RAW
case NETCONN_RAW:
raw_connect(msg->conn->pcb.raw, msg->msg.bc.ipaddr);
sys_mbox_post(msg->conn->mbox, NULL);
break;
#endif
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDPLITE:
/* FALLTHROUGH */
@ -550,15 +488,15 @@ do_connect(struct api_msg_msg *msg)
udp_connect(msg->conn->pcb.udp, msg->msg.bc.ipaddr, msg->msg.bc.port);
sys_mbox_post(msg->conn->mbox, NULL);
break;
#endif
#if LWIP_TCP
#endif /* LWIP_UDP */
#if LWIP_TCP
case NETCONN_TCP:
/* tcp_arg(msg->conn->pcb.tcp, msg->conn);*/
/*tcp_arg(msg->conn->pcb.tcp, msg->conn);*/
setup_tcp(msg->conn);
tcp_connect(msg->conn->pcb.tcp, msg->msg.bc.ipaddr, msg->msg.bc.port,
do_connected);
/*tcp_output(msg->conn->pcb.tcp);*/
#endif
#endif /* LWIP_TCP */
default:
break;
@ -568,13 +506,12 @@ do_connect(struct api_msg_msg *msg)
static void
do_disconnect(struct api_msg_msg *msg)
{
switch (msg->conn->type) {
#if LWIP_RAW
case NETCONN_RAW:
/* Do nothing as connecting is only a helper for upper lwip layers */
break;
#endif
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDPLITE:
/* FALLTHROUGH */
@ -583,7 +520,7 @@ do_disconnect(struct api_msg_msg *msg)
case NETCONN_UDP:
udp_disconnect(msg->conn->pcb.udp);
break;
#endif
#endif /* LWIP_UDP */
case NETCONN_TCP:
break;
}
@ -600,7 +537,7 @@ do_listen(struct api_msg_msg *msg)
case NETCONN_RAW:
LWIP_DEBUGF(API_MSG_DEBUG, ("api_msg: listen RAW: cannot listen for RAW.\n"));
break;
#endif
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDPLITE:
/* FALLTHROUGH */
@ -610,7 +547,7 @@ do_listen(struct api_msg_msg *msg)
LWIP_DEBUGF(API_MSG_DEBUG, ("api_msg: listen UDP: cannot listen for UDP.\n"));
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
#if LWIP_TCP
case NETCONN_TCP:
msg->conn->pcb.tcp = tcp_listen(msg->conn->pcb.tcp);
if (msg->conn->pcb.tcp == NULL) {
@ -625,7 +562,7 @@ do_listen(struct api_msg_msg *msg)
tcp_arg(msg->conn->pcb.tcp, msg->conn);
tcp_accept(msg->conn->pcb.tcp, accept_function);
}
#endif
#endif /* LWIP_TCP */
default:
break;
}
@ -823,5 +760,3 @@ api_msg_post(struct api_msg *msg)
return tcpip_apimsg(msg);
}