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Fix a small memory leak from the nr-sack code - the mapping array

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was not being freed at term of association. Also get rid of
the MICHAELS_EXP code.
This commit is contained in:
Randall Stewart 2009-05-30 10:56:27 +00:00
parent 667d2d3cbb
commit bf1be57101
2 changed files with 14 additions and 40 deletions
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26
sys/netinet/sctp_pcb.c
View File

@ -4104,9 +4104,6 @@ sctp_aloc_assoc(struct sctp_inpcb *inp, struct sockaddr *firstaddr,
head = &SCTP_BASE_INFO(sctp_asochash)[SCTP_PCBHASH_ASOC(stcb->asoc.my_vtag, SCTP_BASE_INFO(hashasocmark))];
/* put it in the bucket in the vtag hash of assoc's for the system */
LIST_INSERT_HEAD(head, stcb, sctp_asocs);
#ifdef MICHAELS_EXPERIMENT
sctp_delete_from_timewait(stcb->asoc.my_vtag, inp->sctp_lport, stcb->rport);
#endif
SCTP_INP_INFO_WUNLOCK();
if ((err = sctp_add_remote_addr(stcb, firstaddr, SCTP_DO_SETSCOPE, SCTP_ALLOC_ASOC))) {
@ -4119,6 +4116,10 @@ sctp_aloc_assoc(struct sctp_inpcb *inp, struct sockaddr *firstaddr,
SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);
asoc->mapping_array = NULL;
}
if (asoc->nr_mapping_array) {
SCTP_FREE(asoc->nr_mapping_array, SCTP_M_MAP);
asoc->nr_mapping_array = NULL;
}
SCTP_DECR_ASOC_COUNT();
SCTP_TCB_LOCK_DESTROY(stcb);
SCTP_TCB_SEND_LOCK_DESTROY(stcb);
@ -4881,6 +4882,10 @@ sctp_free_assoc(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int from_inpcbfre
SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);
asoc->mapping_array = NULL;
}
if (asoc->nr_mapping_array) {
SCTP_FREE(asoc->nr_mapping_array, SCTP_M_MAP);
asoc->nr_mapping_array = NULL;
}
/* the stream outs */
if (asoc->strmout) {
SCTP_FREE(asoc->strmout, SCTP_M_STRMO);
@ -6378,21 +6383,6 @@ sctp_is_vtag_good(struct sctp_inpcb *inp, uint32_t tag, uint16_t lport, uint16_t
}
}
SCTP_INP_INFO_RUNLOCK();
#ifdef MICHAELS_EXPERIMENT
/*-
* Not found, ok to use the tag, add it to the time wait hash
* as well this will prevent two sucessive cookies from getting
* the same tag or two inits sent quickly on multi-processors.
* We only keep the tag for the life of a cookie and when we
* add this tag to the assoc hash we need to purge it from
* the t-wait hash.
*/
SCTP_INP_INFO_WLOCK();
if (save_in_twait)
sctp_add_vtag_to_timewait(tag, TICKS_TO_SEC(inp->sctp_ep.def_cookie_life, lport, rport));
SCTP_INP_INFO_WUNLOCK();
#endif
return (1);
}

28
sys/netinet/sctputil.c
View File

@ -917,24 +917,7 @@ sctp_init_asoc(struct sctp_inpcb *m, struct sctp_tcb *stcb,
#endif
asoc->sb_send_resv = 0;
if (override_tag) {
#ifdef MICHAELS_EXPERIMENT
if (sctp_is_in_timewait(override_tag, stcb->sctp_ep->sctp_lport, stcb->rport)) {
/*
* It must be in the time-wait hash, we put it there
* when we aloc one. If not the peer is playing
* games.
*/
asoc->my_vtag = override_tag;
} else {
SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);
#ifdef INVARIANTS
panic("Huh is_in_timewait fails");
#endif
return (ENOMEM);
}
#else
asoc->my_vtag = override_tag;
#endif
} else {
asoc->my_vtag = sctp_select_a_tag(m, stcb->sctp_ep->sctp_lport, stcb->rport, 1);
}
@ -1159,11 +1142,12 @@ sctp_init_asoc(struct sctp_inpcb *m, struct sctp_tcb *stcb,
asoc->nr_mapping_array_size = SCTP_INITIAL_NR_MAPPING_ARRAY;
SCTP_MALLOC(asoc->nr_mapping_array, uint8_t *, asoc->nr_mapping_array_size,
SCTP_M_MAP);
/*
* if (asoc->nr_mapping_array == NULL) { SCTP_FREE(asoc->strmout,
* SCTP_M_STRMO); SCTP_LTRACE_ERR_RET(NULL, stcb, NULL,
* SCTP_FROM_SCTPUTIL, ENOMEM); return (ENOMEM); }
*/
if (asoc->nr_mapping_array == NULL) {
SCTP_FREE(asoc->strmout, SCTP_M_STRMO);
SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);
SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);
return (ENOMEM);
}
memset(asoc->nr_mapping_array, 0, asoc->nr_mapping_array_size);
/* Now the init of the other outqueues */