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raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception of broadcast packets even when this option wasn't set. Port maintainers which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h. If you want this option also filter broadcast on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1 in opt.h.

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This commit is contained in:
fbernon
2009-04-29 12:42:43 +00:00
parent 42c59e1079
commit d4ecb23015
7 changed files with 84 additions and 23 deletions
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2
src/include/ipv4/lwip/ip.h
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@@ -107,7 +107,7 @@ struct ip_pcb {
#define SOF_REUSEADDR (u16_t)0x0004U /* allow local address reuse */
#define SOF_KEEPALIVE (u16_t)0x0008U /* keep connections alive */
#define SOF_DONTROUTE (u16_t)0x0010U /* just use interface addresses */
#define SOF_BROADCAST (u16_t)0x0020U /* permit sending of broadcast msgs */
#define SOF_BROADCAST (u16_t)0x0020U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
#define SOF_USELOOPBACK (u16_t)0x0040U /* bypass hardware when possible */
#define SOF_LINGER (u16_t)0x0080U /* linger on close if data present */
#define SOF_OOBINLINE (u16_t)0x0100U /* leave received OOB data in line */

17
src/include/lwip/opt.h
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@@ -450,6 +450,23 @@
#define IP_DEFAULT_TTL 255
#endif
/**
* IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast
* filter per pcb on udp and raw send operations. To enable broadcast filter
* on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1.
*/
#ifndef IP_SOF_BROADCAST
#define IP_SOF_BROADCAST 0
#endif
/**
* IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast
* filter on recv operations.
*/
#ifndef IP_SOF_BROADCAST_RECV
#define IP_SOF_BROADCAST_RECV 0
#endif
/*
----------------------------------
---------- ICMP options ----------

2
src/include/lwip/sockets.h
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@@ -77,7 +77,7 @@ struct sockaddr {
#define SO_REUSEADDR 0x0004 /* Unimplemented: allow local address reuse */
#define SO_KEEPALIVE 0x0008 /* keep connections alive */
#define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */
#define SO_BROADCAST 0x0020 /* Unimplemented: permit sending of broadcast msgs */
#define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
#define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */
#define SO_LINGER 0x0080 /* linger on close if data present */
#define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */