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libgtpnl
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libgtpnl/include/libgtpnl/gtpnl.h

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add libgtpnl This patch adds the libgtpnl library. Harald mentioned that he wanted that the specific code that is added is well encapsulated, so let's start a small library to interact with the GTP kernel module via netlink interface. This was done a bit while in the rush, so the interfaces are not nice at all and the tools need to be ported on top of this library. This library will be used to integrate openggsn with the GTP kernel module.
2014-02-20 17:43:15 +00:00
#ifndef _LIBGTPNL_H_
#define _LIBGTPNL_H_
#include <stdint.h>
struct mnl_socket;
struct nlmsghdr;
struct mnl_socket *genl_socket_open(void);
Add genl_socket_close() function We've had genl_socket_open() but no corresponding genl_socket_close() so far. Let's fix that.
2017-11-08 07:04:00 +00:00
void genl_socket_close(struct mnl_socket *nl);
add libgtpnl This patch adds the libgtpnl library. Harald mentioned that he wanted that the specific code that is added is well encapsulated, so let's start a small library to interact with the GTP kernel module via netlink interface. This was done a bit while in the rush, so the interfaces are not nice at all and the tools need to be ported on top of this library. This library will be used to integrate openggsn with the GTP kernel module.
2014-02-20 17:43:15 +00:00
struct nlmsghdr *genl_nlmsg_build_hdr(char *buf, uint16_t type, uint16_t flags,
uint32_t seq, uint8_t cmd);
int genl_socket_talk(struct mnl_socket *nl, struct nlmsghdr *nlh, uint32_t seq,
int (*cb)(const struct nlmsghdr *nlh, void *data),
void *data);
int genl_lookup_family(struct mnl_socket *nl, const char *family);
gtp-rtnl: add gtp_dev_config function This function allows us to set the gtp0 device configuration the route to encapsulate all traffic that is addressed to the MS from the GGSN
2014-03-20 15:23:18 +00:00
struct in_addr;
gtp-rtnl: real_ifname is not long needed, remove it Signed-off-by: Andreas Schultz <aschultz@tpip.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-04-11 14:10:02 +00:00
int gtp_dev_create(int dest_ns, const char *gtp_ifname, int fd0, int fd1);
Add support for SGSN role via IFLA_GTP_ROLE This patch corresponds to a Linux kernel patch extending the kernel GTP to also cover the SGSN role, not just the GGSN role. In order to keep the API/behavior compatible, gtp_dev_create() will continue to create GGSN-side tunnels, while a new gtp_dev_create_sgsn() is introduced to create SGSN-side tunnels. Signed-off-by: Harald Welte <laforge@gnumonks.org>
2017-03-15 17:03:42 +00:00
int gtp_dev_create_sgsn(int dest_ns, const char *gtp_ifname, int fd0, int fd1);
gtp-rtnl: add gtp_dev_config function This function allows us to set the gtp0 device configuration the route to encapsulate all traffic that is addressed to the MS from the GGSN
2014-03-20 15:23:18 +00:00
int gtp_dev_config(const char *iface, struct in_addr *net, uint32_t prefix);
allow to specify the interface name for the GTP device We can use this to specify 'gtp0' from openggsn, so we make sure that it always uses the same tunnel device on creation. If it already exists, it will return EEXIST. This is used to skip the problem of lacking NLM_F_ECHO in the rtnetlink link interface that allows us to know the name of the gtp device that has been dynamically allocated from the kernel. And, finally, I don't find any use case for having more than one tunnel device when integrating this with openggsn. This patch also adjusts tools/gtp-link-add.c which needs some care, since it is not yet using any of the library functions. This tools are likely to be useful for troubleshooting and debugging.
2014-02-24 10:38:52 +00:00
int gtp_dev_destroy(const char *gtp_ifname);
add libgtpnl This patch adds the libgtpnl library. Harald mentioned that he wanted that the specific code that is added is well encapsulated, so let's start a small library to interact with the GTP kernel module via netlink interface. This was done a bit while in the rush, so the interfaces are not nice at all and the tools need to be ported on top of this library. This library will be used to integrate openggsn with the GTP kernel module.
2014-02-20 17:43:15 +00:00
add struct gtp_tunnel and adapt functions to use it This patch adds a gtp_tunnel structure to avoid having to deal with functions with lots of parameters. This should also help to extend the interfaces and the gtp_tunnel object without breaking the binary interface (which will be good by when ipv6 support will be added).
2014-02-22 21:09:59 +00:00
struct gtp_tunnel;
int gtp_add_tunnel(int genl_id, struct mnl_socket *nl, struct gtp_tunnel *t);
int gtp_del_tunnel(int genl_id, struct mnl_socket *nl, struct gtp_tunnel *t);
add libgtpnl This patch adds the libgtpnl library. Harald mentioned that he wanted that the specific code that is added is well encapsulated, so let's start a small library to interact with the GTP kernel module via netlink interface. This was done a bit while in the rush, so the interfaces are not nice at all and the tools need to be ported on top of this library. This library will be used to integrate openggsn with the GTP kernel module.
2014-02-20 17:43:15 +00:00
int gtp_list_tunnel(int genl_id, struct mnl_socket *nl);
#endif