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libnl/include/netlink/route/pktloc.h

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Packet Location Interface
2010-07-02 14:06:59 +02:00
/*
* netlink/route/pktloc.h Packet Location Aliasing
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
*/
#ifndef NETLINK_PKTLOC_H_
#define NETLINK_PKTLOC_H_
#include <netlink/netlink.h>
#include <netlink/cache.h>
#include <netlink/route/tc.h>
#include <linux/tc_ematch/tc_em_cmp.h>
#ifdef __cplusplus
extern "C" {
#endif
struct rtnl_pktloc
{
char * name;
Packet location updates This patch includes various bugfixes in the packet location parser. Namely it removes two memory leaks if parsing fails. The parser is correctly quit if an allocation error occurs and it is no longer possible to add duplicates. It removes the possibility to differ between net and host byteorder. This is better done in the actual classifiers as it makes more sense to specify this together with the value to compare against. The patch also extends the API to add new packet locations via rtnl_pktloc_add(). It introduces reference counting, therefore you now have to give back packet locations with rtnl_pktloc_put() after looking them up with rtnl_pktloc_lookup(). But you are allowed to keep using them if the packet location file has been reread. The packet location file now also understands "eth", "ip", and "tcp" for "link", "net", and "transport". A --list option has been added to nl-pktloc-lookup to list all packet location definitions A --u32=VALUE option has been added to let nl-pktloc-lookup print the definition in iproute2's u32 selector style. A manual page has been written for nl-pktloc-lookup. Finally, nl-pktloc-lookup has been made installable.
2010-10-27 01:21:50 +02:00
uint8_t layer;
pktloc: support to specify a shift operator for packet locations no users yet though.
2010-11-04 20:01:36 +01:00
uint8_t shift;
Packet Location Interface
2010-07-02 14:06:59 +02:00
uint16_t offset;
Extended pktloc to support nbyte locations for ipv6, etc. The alignment column/field now also takes a number, specifying the length in bytes of the field described by the location
2010-10-29 00:14:34 +02:00
uint16_t align;
Packet Location Interface
2010-07-02 14:06:59 +02:00
uint32_t mask;
Packet location updates This patch includes various bugfixes in the packet location parser. Namely it removes two memory leaks if parsing fails. The parser is correctly quit if an allocation error occurs and it is no longer possible to add duplicates. It removes the possibility to differ between net and host byteorder. This is better done in the actual classifiers as it makes more sense to specify this together with the value to compare against. The patch also extends the API to add new packet locations via rtnl_pktloc_add(). It introduces reference counting, therefore you now have to give back packet locations with rtnl_pktloc_put() after looking them up with rtnl_pktloc_lookup(). But you are allowed to keep using them if the packet location file has been reread. The packet location file now also understands "eth", "ip", and "tcp" for "link", "net", and "transport". A --list option has been added to nl-pktloc-lookup to list all packet location definitions A --u32=VALUE option has been added to let nl-pktloc-lookup print the definition in iproute2's u32 selector style. A manual page has been written for nl-pktloc-lookup. Finally, nl-pktloc-lookup has been made installable.
2010-10-27 01:21:50 +02:00
uint32_t refcnt;
Packet Location Interface
2010-07-02 14:06:59 +02:00
struct nl_list_head list;
};
Packet location updates This patch includes various bugfixes in the packet location parser. Namely it removes two memory leaks if parsing fails. The parser is correctly quit if an allocation error occurs and it is no longer possible to add duplicates. It removes the possibility to differ between net and host byteorder. This is better done in the actual classifiers as it makes more sense to specify this together with the value to compare against. The patch also extends the API to add new packet locations via rtnl_pktloc_add(). It introduces reference counting, therefore you now have to give back packet locations with rtnl_pktloc_put() after looking them up with rtnl_pktloc_lookup(). But you are allowed to keep using them if the packet location file has been reread. The packet location file now also understands "eth", "ip", and "tcp" for "link", "net", and "transport". A --list option has been added to nl-pktloc-lookup to list all packet location definitions A --u32=VALUE option has been added to let nl-pktloc-lookup print the definition in iproute2's u32 selector style. A manual page has been written for nl-pktloc-lookup. Finally, nl-pktloc-lookup has been made installable.
2010-10-27 01:21:50 +02:00
extern int rtnl_pktloc_lookup(const char *, struct rtnl_pktloc **);
Extended pktloc to support nbyte locations for ipv6, etc. The alignment column/field now also takes a number, specifying the length in bytes of the field described by the location
2010-10-29 00:14:34 +02:00
extern struct rtnl_pktloc *rtnl_pktloc_alloc(void);
Packet location updates This patch includes various bugfixes in the packet location parser. Namely it removes two memory leaks if parsing fails. The parser is correctly quit if an allocation error occurs and it is no longer possible to add duplicates. It removes the possibility to differ between net and host byteorder. This is better done in the actual classifiers as it makes more sense to specify this together with the value to compare against. The patch also extends the API to add new packet locations via rtnl_pktloc_add(). It introduces reference counting, therefore you now have to give back packet locations with rtnl_pktloc_put() after looking them up with rtnl_pktloc_lookup(). But you are allowed to keep using them if the packet location file has been reread. The packet location file now also understands "eth", "ip", and "tcp" for "link", "net", and "transport". A --list option has been added to nl-pktloc-lookup to list all packet location definitions A --u32=VALUE option has been added to let nl-pktloc-lookup print the definition in iproute2's u32 selector style. A manual page has been written for nl-pktloc-lookup. Finally, nl-pktloc-lookup has been made installable.
2010-10-27 01:21:50 +02:00
extern void rtnl_pktloc_put(struct rtnl_pktloc *);
extern int rtnl_pktloc_add(struct rtnl_pktloc *);
extern void rtnl_pktloc_foreach(void (*cb)(struct rtnl_pktloc *, void *),
void *);
Packet Location Interface
2010-07-02 14:06:59 +02:00
#ifdef __cplusplus
}
#endif
#endif
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