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opnsense-src/sys/netinet
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Garrett Wollman 6e49b1fe55 Don't generate an ip_id for packets with the DF bit set; ip_id is 
only meaningful for fragments.  Also don't bother to byte-swap the
ip_id when we do generate it; it is only used at the receiver as a
nonce.  I tried several different permutations of this code with no
measurable difference to each other or to the unmodified version, so
I've settled on the one for which gcc seems to generate the best code.
(If anyone cares to microoptimize this differently for an architecture
where it actually matters, feel free.)

Suggested by:	Steve Bellovin's paper in IMW'02
2003-05-31 17:55:21 +00:00
..
libalias style.Makefile(5) 2003-04-20 18:38:59 +00:00
accf_data.c Remove so*_locked(), which were backed out by mistake. 2002-06-18 07:42:02 +00:00
accf_http.c Remove so*_locked(), which were backed out by mistake. 2002-06-18 07:42:02 +00:00
icmp6.h s/__attribute__((__packed__))/__packed/g 2002-09-23 06:25:08 +00:00
icmp_var.h Remove __P. 2002-03-19 21:25:46 +00:00
if_atm.c - Change the newly turned INVARIANTS #ifdef blocks (they were changed from 2002-05-21 18:52:24 +00:00
if_atm.h Remove __P. 2002-03-19 21:25:46 +00:00
if_ether.c Update netisr handling; Each SWI now registers its queue, and all queue 2003-03-04 23:19:55 +00:00
if_ether.h Update netisr handling; Each SWI now registers its queue, and all queue 2003-03-04 23:19:55 +00:00
igmp.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
igmp.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
igmp_var.h Remove __P. 2002-03-19 21:25:46 +00:00
in.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
in.h Add definitions for IN6ADDR_LINKLOCAL_ALLMDNS_INIT and INADDR_ALLMDNS_GROUP. 2003-04-29 22:03:46 +00:00
in_cksum.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
in_gif.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
in_gif.h last arg of in6?_gif_output() is not used any more. 2002-10-17 17:47:55 +00:00
in_pcb.c Deprecate machine/limits.h in favor of new sys/limits.h. 2003-04-29 13:36:06 +00:00
in_pcb.h IP_RECVTTL socket option. 2003-04-29 21:36:18 +00:00
in_proto.c Finish driving a stake through the heart of netns and the associated 2003-03-05 19:24:24 +00:00
in_rmx.c Get cosmetic changes out of the way before I add routing table SMP locks. 2003-02-10 22:01:34 +00:00
in_systm.h Remove __P. 2002-03-19 21:25:46 +00:00
in_var.h Update netisr handling; Each SWI now registers its queue, and all queue 2003-03-04 23:19:55 +00:00
ip.h Back out support for RFC3514. 2003-04-02 20:14:44 +00:00
ip6.h s/__attribute__((__packed__))/__packed/g 2002-09-23 06:25:08 +00:00
ip_divert.c Introduce an M_ASSERTPKTHDR() macro which performs the very common task 2003-04-08 14:25:47 +00:00
ip_dummynet.c Fix indentation. 2003-03-27 15:00:10 +00:00
ip_dummynet.h o Protect set_fs_param() by splimp(9). 2003-03-27 14:56:36 +00:00
ip_ecn.c initialize local variable explicitly 2002-04-11 02:14:21 +00:00
ip_ecn.h Remove __P. 2002-03-19 21:25:46 +00:00
ip_encap.c correct two more flag misuses; m_tag* use malloc flags 2003-03-12 14:45:22 +00:00
ip_encap.h Remove __P. 2002-03-19 21:25:46 +00:00
ip_flow.c s/FREE/free/ 2001-11-04 17:35:31 +00:00
ip_flow.h Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
ip_fw.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
ip_fw.h Add a 'verrevpath' option that verifies the interface that a packet 2003-03-15 01:13:00 +00:00
ip_fw2.c Add a 'verrevpath' option that verifies the interface that a packet 2003-03-15 01:13:00 +00:00
ip_gre.c Finish driving a stake through the heart of netns and the associated 2003-03-05 19:24:24 +00:00
ip_gre.h de-__P(). 2002-10-16 22:27:27 +00:00
ip_icmp.c Add a sysctl node allowing the specification of an address mask to use 2003-03-21 15:43:06 +00:00
ip_icmp.h Add comments regarding the ICMP timestamp fields. 2003-03-21 15:28:10 +00:00
ip_id.c Remove __P. 2002-03-19 21:25:46 +00:00
ip_input.c Trim a call to mac_create_mbuf_from_mbuf() since m_tag meta-data 2003-05-06 20:34:04 +00:00
ip_mroute.c Introduce an M_ASSERTPKTHDR() macro which performs the very common task 2003-04-08 14:25:47 +00:00
ip_mroute.h Massive cleanup of the ip_mroute code. 2002-11-15 22:53:53 +00:00
ip_output.c Don't generate an ip_id for packets with the DF bit set; ip_id is 2003-05-31 17:55:21 +00:00
ip_var.h Back out support for RFC3514. 2003-04-02 20:14:44 +00:00
ipprotosw.h KSE Milestone 2 2001-09-12 08:38:13 +00:00
raw_ip.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
tcp.h Include <sys/cdefs.h> so the visibility conditionals are available. 2002-10-02 04:22:34 +00:00
tcp_debug.c It's now sufficient to rely on a nested include of _label.h to make sure 2002-08-15 14:34:45 +00:00
tcp_debug.h make the strings for tcptimers, tanames and prurequests const to silence 2002-08-16 09:07:59 +00:00
tcp_fsm.h WARNS=n and lint(1) silencer. Declare an array of (const) strings 2002-02-03 11:57:32 +00:00
tcp_input.c Correct a bug introduced with reduced TCP state handling; make 2003-05-07 05:26:27 +00:00
tcp_output.c Convert tcp_fillheaders(tp, ...) -> tcpip_fillheaders(inp, ...) so the 2003-02-19 22:18:06 +00:00
tcp_reass.c Correct a bug introduced with reduced TCP state handling; make 2003-05-07 05:26:27 +00:00
tcp_seq.h Fix NewReno. 2003-01-13 11:01:20 +00:00
tcp_subr.c Correct a bug introduced with reduced TCP state handling; make 2003-05-07 05:26:27 +00:00
tcp_syncache.c Fix a comment which didn't match the new cookie behavior. 2003-02-24 03:15:48 +00:00
tcp_timer.c Remove a panic(); if the zone allocator can't provide more timewait 2003-03-08 22:06:20 +00:00
tcp_timer.h Remove a panic(); if the zone allocator can't provide more timewait 2003-03-08 22:06:20 +00:00
tcp_timewait.c Correct a bug introduced with reduced TCP state handling; make 2003-05-07 05:26:27 +00:00
tcp_usrreq.c Remove check for t_state == TCPS_TIME_WAIT and introduce the tw structure. 2003-03-08 22:07:52 +00:00
tcp_var.h Correct a bug introduced with reduced TCP state handling; make 2003-05-07 05:26:27 +00:00
tcpip.h Remove struct full_tcpiphdr{}. 2001-02-26 20:10:16 +00:00
udp.h $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
udp_usrreq.c Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
udp_var.h Notify functions can destroy the pcb, so they have to return an 2002-06-14 08:35:21 +00:00