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fixed bug #31177: tcp timers can corrupt tcp_active_pcbs in some cases

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This commit is contained in:
goldsimon
2011-11-25 18:36:52 +01:00
parent 14c766e750
commit dd8729063c
5 changed files with 85 additions and 24 deletions
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1
src/include/lwip/tcp.h
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@@ -191,6 +191,7 @@ struct tcp_pcb {
/* Timers */
u8_t polltmr, pollinterval;
u8_t last_timer;
u32_t tmr;
/* receiver variables */

19
src/include/lwip/tcp_impl.h
View File

@@ -309,6 +309,7 @@ struct tcp_seg {
/* Global variables: */
extern struct tcp_pcb *tcp_input_pcb;
extern u32_t tcp_ticks;
extern u8_t tcp_active_pcbs_changed;
/* The TCP PCB lists. */
union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */
@@ -395,6 +396,24 @@ extern struct tcp_pcb *tcp_tmp_pcb; /* Only used for temporary storage. */
#endif /* LWIP_DEBUG */
#define TCP_REG_ACTIVE(npcb) \
do { \
TCP_REG(&tcp_active_pcbs, npcb); \
tcp_active_pcbs_changed = 1; \
} while (0)
#define TCP_RMV_ACTIVE(npcb) \
do { \
TCP_RMV(&tcp_active_pcbs, npcb); \
tcp_active_pcbs_changed = 1; \
} while (0)
#define TCP_PCB_REMOVE_ACTIVE(pcb) \
do { \
tcp_pcb_remove(&tcp_active_pcbs, pcb); \
tcp_active_pcbs_changed = 1; \
} while (0)
/* Internal functions: */
struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb);