Lines Matching +full:fixed +full:- +full:links
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
39 port number. Links are also used to store information about
43 links as new packets are sent through. A simple timeout is
44 used for ICMP and UDP links. TCP links are left alone unless
51 Facility for handling incoming links added.
59 Permits links for unspecified remote ports
61 Fixed bug which did not properly zero port
66 Fixed data type error in StartPoint().
68 and was discovered and fixed by Ari Suutari)
93 SetAliasAddress() will now clean up alias links
97 links. (J. Fortes suggested the need for this.)
100 (192.168.0.1, port 23) <-> alias port 6002, unknown dest addr/port
102 (192.168.0.2, port 21) <-> alias port 3604, known dest addr
105 These permanent links allow for incoming connections to
107 user-chosen amount of specificity, with increasing specificity
160 /* When the link has been used and closed - minimal grace time to
161 allow ACKs and potential re-connect in FTP (XXX - is this allowed?) */
166 /* When the link has been used and closed on one side - the other side
201 with the 16-bit ID number of the ICMP packet.
217 endpoint-independent mapping, and indexes on source address,
231 int in; /* State for outside -> inside */
232 int out; /* State for inside -> outside */
280 int pflags; /* protocol-specific flags */
285 #define LINK_PARTIALLY_SPECIFIED 0x03 /* logical-or of first two bits */
321 StartPointIn() -- link table initial search point for
323 StartPointOut() -- link table initial search point for
327 SeqDiff() -- difference between two TCP sequences
328 ShowAliasStats() -- send alias statistics to a monitor file
355 int i = a->src_port - b->src_port; in cmp_out()
357 if (a->src_addr.s_addr > b->src_addr.s_addr) return (1); in cmp_out()
358 if (a->src_addr.s_addr < b->src_addr.s_addr) return (-1); in cmp_out()
359 if (a->dst_addr.s_addr > b->dst_addr.s_addr) return (1); in cmp_out()
360 if (a->dst_addr.s_addr < b->dst_addr.s_addr) return (-1); in cmp_out()
361 i = a->dst_port - b->dst_port; in cmp_out()
363 i = a->link_type - b->link_type; in cmp_out()
370 int i = a->alias_port - b->alias_port; in cmp_in()
372 i = a->link_type - b->link_type; in cmp_in()
374 if (a->alias_addr.s_addr > b->alias_addr.s_addr) return (1); in cmp_in()
375 if (a->alias_addr.s_addr < b->alias_addr.s_addr) return (-1); in cmp_in()
382 int i = a->link_type - b->link_type; in cmp_internal_endpoint()
384 if (a->src_addr.s_addr > b->src_addr.s_addr) return (1); in cmp_internal_endpoint()
385 if (a->src_addr.s_addr < b->src_addr.s_addr) return (-1); in cmp_internal_endpoint()
386 i = a->src_port - b->src_port; in cmp_internal_endpoint()
392 /* Internal routines for finding, deleting and adding links
395 GetNewPort() -- find and reserve new alias port number
396 GetSocket() -- try to allocate a socket for a given port
399 CleanupAliasData() - remove all link chains from lookup table
400 CleanupLink() - look for a stale link
401 DeleteLink() - remove link
402 AddLink() - add link
403 ReLink() - change link
406 FindLinkOut() - find link for outgoing packets
407 FindLinkIn() - find link for incoming packets
408 FindLinkByInternalEndpoint() - find link by a packet's internal endpoint
411 FindNewPortGroup() - find an available group of ports
450 (field)[(num) - la->fireWallBaseNum] = 1; \
451 } /*lint -save -e717 */ while(0)/* lint -restore */
455 (field)[(num) - la->fireWallBaseNum] = 0; \
456 } /*lint -save -e717 */ while(0)/* lint -restore */
458 #define fw_tstfield(la, field, num) ((field)[(num) - la->fireWallBaseNum])