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Add SCTPDBG statement for connections closing. #707

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Add SCTPDBG statement for connections closing. #707

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85aa089
Add SCTPDBG statement for connections closing.
JonathanLennox Apr 11, 2024
3d18cca
Call sctp_log_closing unconditionally.
JonathanLennox Apr 17, 2024
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2 changes: 1 addition & 1 deletion usrsctplib/netinet/sctp_constants.h
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Original file line number Diff line number Diff line change
Expand Up @@ -657,7 +657,7 @@ extern void getwintimeofday(struct timeval *tv);
#define SCTP_DEBUG_PCB4 0x00800000
#define SCTP_DEBUG_INDATA1 0x01000000
#define SCTP_DEBUG_INDATA2 0x02000000 /* unused */
#define SCTP_DEBUG_INDATA3 0x04000000 /* unused */
#define SCTP_DEBUG_CLOSING 0x04000000
#define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */
#define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */
#define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */
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3 changes: 3 additions & 0 deletions usrsctplib/netinet/sctputil.c
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Expand Up @@ -127,6 +127,9 @@ sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc)
sctp_clog.x.misc.log3,
sctp_clog.x.misc.log4);
#endif
SCTPDBG(SCTP_DEBUG_CLOSING,
"Connection closing: inp=%p, flags=%x, stcb=%p, state=%d, loc=%d\n",
inp, inp->sctp_flags, stcb, stcb ? stcb->asoc.state : 0, loc);
}

void
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4 changes: 4 additions & 0 deletions usrsctplib/netinet/sctputil.h
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Expand Up @@ -340,6 +340,10 @@ void rto_logging(struct sctp_nets *net, int from);

void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);

#ifdef SCTP_DEBUG
#define SCTP_LOG_CLOSING 1
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SCTP_LOG_CLOSING should be defined via the build system. Since you use it for debugging, maybe something like
env CFLAGS=-DSCTP_LOG_CLOSING ./configure
is good enough?

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I was trying to put the new log statement in a single place, and the existing sctp_log_closing function was only called if the SCTP_LOG_CLOSING define is set.

Currently (prior to my patch), sctp_log_closing only does something if SCTP_LOCAL_TRACE_BUF is set.

With my latest commit, the behavior (other than the addition of the new debug message) should be the same as it was previously for all compiler flags.

#endif

void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
void sctp_log_block(uint8_t, struct sctp_association *, ssize_t);
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