mirrors/bird
mirrors/bird
0
0
Fork 0
mirror of https://gitlab.nic.cz/labs/bird.git synced 2024-12-23 10:11:53 +00:00
Code Releases Activity
732a0a257d
bird/sysdep/linux/netlink/krt-scan.h

37 lines
904 B
C
Raw Normal View History

Rewrote the kernel syncer. The old layering was horrible. The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.
1999-03-03 19:49:56 +00:00
/*
* BIRD -- Linux Kernel Netlink Route Syncer -- Scanning
*
Kernel route syncer now supports dynamic reconfiguration. Also it doesn't depend on the startup counter hack now and uses a zero-time timer instead to make itself scheduled after normal protocol startup.
2000-01-18 10:39:30 +00:00
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
Rewrote the kernel syncer. The old layering was horrible. The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.
1999-03-03 19:49:56 +00:00
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_KRT_SCAN_H_
#define _BIRD_KRT_SCAN_H_
/*
* We don't have split iface/scan/set for Netlink. All options
* and run-time parameters are declared here instead of splitting
* to krt-set.h, krt-iface.h and this file.
*/
Taught Netlink how to behave in IPv6 world.
1999-08-03 19:37:37 +00:00
#define NL_NUM_TABLES 256
Rewrote the kernel syncer. The old layering was horrible. The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.
1999-03-03 19:49:56 +00:00
struct krt_scan_params {
Kernel route syncer supports multiple tables. The changes are just too extensive for lazy me to list them there, but see the comment at the top of sysdep/unix/krt.c. The code got a bit more ifdeffy than I'd like, though. Also fixed a bunch of FIXME's and added a couple of others. :)
1999-08-03 19:33:22 +00:00
int table_id; /* Kernel table ID we sync with */
Rewrote the kernel syncer. The old layering was horrible. The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.
1999-03-03 19:49:56 +00:00
};
struct krt_scan_status {
list temp_ifs; /* Temporary interfaces */
};
Kernel route syncer now supports dynamic reconfiguration. Also it doesn't depend on the startup counter hack now and uses a zero-time timer instead to make itself scheduled after normal protocol startup.
2000-01-18 10:39:30 +00:00
static inline int krt_scan_params_same(struct krt_scan_params *o, struct krt_scan_params *n)
{
Removed the `async' switch which was used for debugging only anyway. Don't moan when netlink reports lost packets.
2000-05-08 12:05:55 +00:00
return o->table_id == n->table_id;
Kernel route syncer now supports dynamic reconfiguration. Also it doesn't depend on the startup counter hack now and uses a zero-time timer instead to make itself scheduled after normal protocol startup.
2000-01-18 10:39:30 +00:00
}
Implements protocol templates. Based on the patch from Alexander V. Chernikov. Extended to support almost all protocols. Uses 'protocol bgp NAME from TEMPLATE { ... }' syntax.
2011-11-06 23:31:23 +00:00
static inline void krt_scan_copy_params(struct krt_scan_params *d UNUSED, struct krt_scan_params *s UNUSED) { }
/* table_id copied in krt_copy_config() */
Rewrote the kernel syncer. The old layering was horrible. The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.
1999-03-03 19:49:56 +00:00
#endif
Copy Permalink