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Define two new inpcb flags in the inp_vflag field, which for whatever

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reason, seems to be where new flags are getting defined:

INP_DROPPED - The protocol has terminated this connection and the socket
              is not reusable: when the socket code enters the protocol,
              an error is immediately returned.  This will substitute for
              NULLing the so_pcb socket field, helping to implement the
              invariant that all valid sockets have valid pcb's in TCP.

INP_SOCKREF - The protocol has become the owner of the socket reference,
              and will need to free it when freeing the pcb, which will
              be used when a TCP socket is closed but still has queued
              data.

MFC after:	1 month
This commit is contained in:
Robert Watson 2006-03-26 11:30:31 +00:00
parent a07b8fd178
commit 6882aa2c03
1 changed files with 2 additions and 0 deletions
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2
sys/netinet/in_pcb.h
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@ -131,6 +131,8 @@ struct inpcb {
#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */
#define INP_TIMEWAIT 0x8 /* .. probably doesn't go here */
#define INP_ONESBCAST 0x10 /* send all-ones broadcast */
#define INP_DROPPED 0x20 /* protocol drop flag */
#define INP_SOCKREF 0x40 /* strong socket reference */
u_char inp_ip_ttl; /* time to live proto */
u_char inp_ip_p; /* protocol proto */
u_char inp_ip_minttl; /* minimum TTL or drop */