freebsd-skq/sys/netinet
andre c69e855178 When doing IP forwarding with [FAST_]IPSEC compiled into the kernel
ip_forward() would report back a zero MTU in ICMP needfrag messages
because on a IPSEC SP lookup failure no MTU got computed.

Fix this by changing the logic to compute a new MTU in any case if
IPSEC didn't do it.

Change MTU computation logic to use egress interface MTU if available
or the next smaller MTU compared to the current packet size instead
of falling back to a very small fixed MTU.

Fix associated comment.

PR:		kern/91412
MFC after:	3 days
2006-01-24 17:57:19 +00:00
..
libalias Fix prototype. 2005-11-24 14:17:35 +00:00
accf_data.c add missing #include <sys/module.h> 2004-05-30 20:27:19 +00:00
accf_http.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
icmp6.h sync with KAME regarding NDP 2005-10-21 16:23:01 +00:00
icmp_var.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_atm.c Add newline to debuging printf. 2005-08-26 15:27:18 +00:00
if_atm.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
if_ether.c Include the bridge interface itself in the special arp handling. 2006-01-12 21:05:30 +00:00
if_ether.h Add CARP (Common Address Redundancy Protocol), which allows multiple 2005-02-22 13:04:05 +00:00
igmp_var.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
igmp.c Consolidate all IP Options handling functions into ip_options.[ch] and 2005-11-18 20:12:40 +00:00
igmp.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
in_cksum.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
in_gif.c Add RFC 3378 EtherIP support. This change makes it possible to add gif 2005-12-21 21:29:45 +00:00
in_gif.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
in_pcb.c Convert remaining functions to ANSI C function declarations; remove 2006-01-22 01:16:25 +00:00
in_pcb.h Implement IP_DONTFRAG IP socket option enabling the Don't Fragment 2005-09-26 20:25:16 +00:00
in_proto.c Add RFC 3378 EtherIP support. This change makes it possible to add gif 2005-12-21 21:29:45 +00:00
in_rmx.c Use monotonic 'time_uptime' instead of 'time_second' as timebase 2005-09-19 22:54:55 +00:00
in_systm.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
in_var.h Return mbuf pointer or NULL from ip_fastforward() as the mbuf pointer 2006-01-18 14:24:39 +00:00
in.c In in_control() remove the temporary in_ifaddr structure from the 2006-01-24 16:19:31 +00:00
in.h Use consistent indent character as other IPPROTO_* lines did. 2005-12-20 09:38:03 +00:00
ip6.h move RFC3542 related definitions into ip6.h. 2005-07-20 10:30:52 +00:00
ip_carp.c MFOpenBSD 1.62: 2005-11-17 12:56:40 +00:00
ip_carp.h Add CARP (Common Address Redundancy Protocol), which allows multiple 2005-02-22 13:04:05 +00:00
ip_divert.c Use sparse initializers for "struct domain" and "struct protosw", 2005-11-09 13:29:16 +00:00
ip_divert.h Convert IPDIVERT into a loadable module. This makes use of the dynamic loadability 2004-10-19 21:14:57 +00:00
ip_dummynet.c First step in removing welding between ipfw(4) and dummynet. 2005-11-29 00:11:01 +00:00
ip_dummynet.h First step in removing welding between ipfw(4) and dummynet. 2005-11-29 00:11:01 +00:00
ip_ecn.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ip_ecn.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ip_encap.c Normalize a significant number of kernel malloc type names: 2005-10-31 15:41:29 +00:00
ip_encap.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ip_fastfwd.c Return mbuf pointer or NULL from ip_fastforward() as the mbuf pointer 2006-01-18 14:24:39 +00:00
ip_fw2.c Fix minor bug in uRPF: 2006-01-24 13:38:06 +00:00
ip_fw_pfil.c obey opt_inet6.h and opt_ipsec.h in kernel build directory. 2005-11-29 17:56:11 +00:00
ip_fw.h Add a new feature for optimizining ipfw rulesets - substitution of the 2005-12-13 12:16:03 +00:00
ip_gre.c Convert last remaining function in ip_gre.c to ANSI C function 2006-01-22 01:08:30 +00:00
ip_gre.h Fix stack corruptions on amd64. 2006-01-21 10:44:34 +00:00
ip_icmp.c Fix build. 2006-01-23 20:10:49 +00:00
ip_icmp.h Pass icmp_error() the MTU argument directly instead of 2005-05-04 13:09:19 +00:00
ip_id.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ip_input.c When doing IP forwarding with [FAST_]IPSEC compiled into the kernel 2006-01-24 17:57:19 +00:00
ip_mroute.c In ip_mdq() compute the TV_DELTA the correct way around. 2006-01-24 17:09:12 +00:00
ip_mroute.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ip_options.c Remove 'ipprintfs' which were protected under DIAGNOSTIC. It doesn't 2005-11-19 17:04:52 +00:00
ip_options.h Move MAX_IPOPTLEN and struct ipoption back into ip_var.h as 2005-11-19 14:01:32 +00:00
ip_output.c In in_delayed_cksum() we can't perform a m_pullup() as it may 2006-01-18 18:49:16 +00:00
ip_var.h Move MAX_IPOPTLEN and struct ipoption back into ip_var.h as 2005-11-19 14:01:32 +00:00
ip.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ipprotosw.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
pim_var.h Remove public declarations of variables that were forgotten when they were 2005-08-10 07:10:02 +00:00
pim.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
raw_ip.c Fix a bunch of SYSCTL_INT() that should have been SYSCTL_ULONG() to 2005-12-14 22:27:48 +00:00
tcp_debug.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
tcp_debug.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
tcp_fsm.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
tcp_hostcache.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
tcp_input.c Do not derefence the ip header pointer in the IPv6 case. 2006-01-18 18:59:30 +00:00
tcp_output.c Consolidate all IP Options handling functions into ip_options.[ch] and 2005-11-18 20:12:40 +00:00
tcp_reass.c Do not derefence the ip header pointer in the IPv6 case. 2006-01-18 18:59:30 +00:00
tcp_sack.c Fix for a bug that causes SACK scoreboard corruption when the limit 2005-11-21 19:22:10 +00:00
tcp_seq.h - Tighten up the Timestamp checks to prevent a spoofed segment from 2005-04-10 05:24:59 +00:00
tcp_subr.c Retire MT_HEADER mbuf type and change its users to use MT_DATA. 2005-11-02 13:46:32 +00:00
tcp_syncache.c In syncache_expand() insert a proper syncache_free() to fix a case 2006-01-18 18:25:03 +00:00
tcp_timer.c Remove no-op spl's and most comment references to spls, as TCP locking 2005-07-19 12:21:26 +00:00
tcp_timer.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
tcp_timewait.c Retire MT_HEADER mbuf type and change its users to use MT_DATA. 2005-11-02 13:46:32 +00:00
tcp_usrreq.c Fix a bunch of SYSCTL_INT() that should have been SYSCTL_ULONG() to 2005-12-14 22:27:48 +00:00
tcp_var.h - Postpone SACK option processing until after PAWS checks. SACK option 2005-06-27 22:27:42 +00:00
tcp.h Fix up the comment for MAX_SACK_BLKS. 2005-08-24 02:47:16 +00:00
tcpip.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
udp_usrreq.c Implement 'ipfw fwd laddr,port' feature for UDP. According to ipfw(8) 2006-01-24 09:08:54 +00:00
udp_var.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
udp.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00