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fixed bug #40788 "lwip_setsockopt_internal() crashes" by rewriting set/getsockopt functions to combine checks with the actual code and add more NULL checks; this also fixes that CORE_LOCKING used message passing for set/getsockopt.

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sg 2015-01-17 14:18:27 +01:00
parent 1cbd2121e2
commit 5d2e93e5f0
4 changed files with 292 additions and 602 deletions
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6
CHANGELOG
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@ -147,6 +147,12 @@ HISTORY
++ Bugfixes:
2015-01-17: Simon Goldschmidt
* sockets.c/.h, memp_std.h: fixed bug #40788 "lwip_setsockopt_internal() crashes"
by rewriting set/getsockopt functions to combine checks with the actual code
and add more NULL checks; this also fixes that CORE_LOCKING used message
passing for set/getsockopt.
2014-12-19: Simon Goldschmidt
* opt.h, dhcp.h/.c: prevent dhcp from starting when netif link is down (only
when LWIP_DHCP_CHECK_LINK_UP==1, which is disabled by default for

867
src/api/sockets.c
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File diff suppressed because it is too large Load Diff

2
src/include/lwip/memp_std.h
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@ -63,7 +63,7 @@ LWIP_MEMPOOL(API_MSG, MEMP_NUM_API_MSG, sizeof(struct api_msg),
#if LWIP_DNS
LWIP_MEMPOOL(DNS_API_MSG, MEMP_NUM_DNS_API_MSG, sizeof(struct dns_api_msg), "DNS_API_MSG")
#endif
#if LWIP_SOCKET
#if LWIP_SOCKET && !LWIP_TCPIP_CORE_LOCKING
LWIP_MEMPOOL(SOCKET_SETGETSOCKOPT_DATA, MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA, sizeof(struct lwip_setgetsockopt_data), "SOCKET_SETGETSOCKOPT_DATA")
#endif
#if LWIP_NETIF_API

19
src/include/lwip/sockets.h
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@ -108,31 +108,34 @@ typedef u32_t socklen_t;
struct lwip_sock;
#if !LWIP_TCPIP_CORE_LOCKING
/** Maximum optlen used by setsockopt/getsockopt */
#define LWIP_SETGETSOCKOPT_MAXOPTLEN 16
/** This struct is used to pass data to the set/getsockopt_internal
* functions running in tcpip_thread context (only a void* is allowed) */
struct lwip_setgetsockopt_data {
/** socket struct for which to change options */
struct lwip_sock *sock;
#ifdef LWIP_DEBUG
/** socket index for which to change options */
int s;
#endif /* LWIP_DEBUG */
/** level of the option to process */
int level;
/** name of the option to process */
int optname;
/** set: value to set the option to
* get: value of the option is stored here */
void *optval;
#if LWIP_MPU_COMPATIBLE
u8_t optval[LWIP_SETGETSOCKOPT_MAXOPTLEN];
#else
void* optval;
#endif
/** size of *optval */
socklen_t *optlen;
socklen_t optlen;
/** if an error occurs, it is temporarily stored here */
err_t err;
#if !LWIP_TCPIP_CORE_LOCKING
/** semaphore to wake up the calling task */
void* completed_sem;
#endif /* !LWIP_TCPIP_CORE_LOCKING */
};
#endif /* !LWIP_TCPIP_CORE_LOCKING */
/* Socket protocol types (TCP/UDP/RAW) */
#define SOCK_STREAM 1