cellular-infrastructure
/
osmo-gtp-kernel
9
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

gtp-rtnl: refactor code to prepare the addition of gtp_dev_destroy 

Add gtp_dev_talk() and gtp_put_nlmsg().
This commit is contained in:
Pablo Neira Ayuso 2014-02-22 22:57:07 +01:00
parent efdbb3bc73
commit b94023299f
1 changed files with 41 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
libgtnl/src/gtp-rtnl.c
View File

@ -15,33 +15,24 @@
#include "internal.h"
int gtp_dev_create(const char *ifname)
static struct nlmsghdr *
gtp_put_nlmsg(char *buf, uint16_t type, uint16_t nl_flags, uint32_t seq)
{
struct nlmsghdr *nlh;
nlh = mnl_nlmsg_put_header(buf);
nlh->nlmsg_type = type;
nlh->nlmsg_flags = NLM_F_REQUEST | nl_flags;
nlh->nlmsg_seq = seq;
return nlh;
}
static int gtp_dev_talk(struct nlmsghdr *nlh, uint32_t seq)
{
struct mnl_socket *nl;
char buf[MNL_SOCKET_BUFFER_SIZE];
struct nlmsghdr *nlh;
struct ifinfomsg *ifm;
int ret;
unsigned int seq, portid;
struct nlattr *nest, *nest2;
nlh = mnl_nlmsg_put_header(buf);
nlh->nlmsg_type = RTM_NEWLINK;
nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
nlh->nlmsg_seq = seq = time(NULL);
ifm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifm));
ifm->ifi_family = AF_INET;
ifm->ifi_change |= IFF_UP;
ifm->ifi_flags |= IFF_UP;
mnl_attr_put_u32(nlh, IFLA_LINK, if_nametoindex(ifname));
nest = mnl_attr_nest_start(nlh, IFLA_LINKINFO);
mnl_attr_put_str(nlh, IFLA_INFO_KIND, "gtp");
nest2 = mnl_attr_nest_start(nlh, IFLA_INFO_DATA);
mnl_attr_put_u32(nlh, IFLA_GTP_LOCAL_ADDR_IPV4, 0);
mnl_attr_put_u32(nlh, IFLA_GTP_HASHSIZE, 131072);
mnl_attr_nest_end(nlh, nest2);
mnl_attr_nest_end(nlh, nest);
nl = mnl_socket_open(NETLINK_ROUTE);
if (nl == NULL) {
@ -53,7 +44,6 @@ int gtp_dev_create(const char *ifname)
perror("mnl_socket_bind");
goto err;
}
portid = mnl_socket_get_portid(nl);
mnl_nlmsg_fprintf(stdout, nlh, nlh->nlmsg_len,
sizeof(struct ifinfomsg));
@ -69,7 +59,7 @@ int gtp_dev_create(const char *ifname)
goto err;
}
ret = mnl_cb_run(buf, ret, seq, portid, NULL, NULL);
ret = mnl_cb_run(buf, ret, seq, mnl_socket_get_portid(nl), NULL, NULL);
if (ret == -1){
perror("callback");
goto err;
@ -81,4 +71,30 @@ err:
mnl_socket_close(nl);
return -1;
}
int gtp_dev_create(const char *ifname)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
struct nlmsghdr *nlh;
struct ifinfomsg *ifm;
unsigned int seq = time(NULL);
struct nlattr *nest, *nest2;
nlh = gtp_put_nlmsg(buf, RTM_NEWLINK, NLM_F_CREATE | NLM_F_ACK, seq);
ifm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifm));
ifm->ifi_family = AF_INET;
ifm->ifi_change |= IFF_UP;
ifm->ifi_flags |= IFF_UP;
mnl_attr_put_u32(nlh, IFLA_LINK, if_nametoindex(ifname));
nest = mnl_attr_nest_start(nlh, IFLA_LINKINFO);
mnl_attr_put_str(nlh, IFLA_INFO_KIND, "gtp");
nest2 = mnl_attr_nest_start(nlh, IFLA_INFO_DATA);
mnl_attr_put_u32(nlh, IFLA_GTP_LOCAL_ADDR_IPV4, 0);
mnl_attr_put_u32(nlh, IFLA_GTP_HASHSIZE, 131072);
mnl_attr_nest_end(nlh, nest2);
mnl_attr_nest_end(nlh, nest);
return gtp_dev_talk(nlh, seq);
}
EXPORT_SYMBOL(gtp_dev_create);