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rtnlutil: Add utility to set MAC address

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This commit is contained in:
Denis Kenzior 2019-07-01 18:28:39 -05:00
parent f4402ef56e
commit ec38545a68
2 changed files with 37 additions and 0 deletions
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31
src/rtnlutil.c
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@ -88,6 +88,37 @@ uint32_t rtnl_set_linkmode_and_operstate(struct l_netlink *rtnl, int ifindex,
return id; return id;
} }
uint32_t rtnl_set_mac(struct l_netlink *rtnl, int ifindex,
const uint8_t addr[static 6],
l_netlink_command_func_t cb,
void *user_data,
l_netlink_destroy_func_t destroy)
{
struct ifinfomsg *rtmmsg;
void *rta_buf;
size_t bufsize;
uint32_t id;
bufsize = NLMSG_ALIGN(sizeof(struct ifinfomsg)) + RTA_SPACE(6);
rtmmsg = l_malloc(bufsize);
memset(rtmmsg, 0, bufsize);
rtmmsg->ifi_family = AF_UNSPEC;
rtmmsg->ifi_index = ifindex;
rta_buf = (void *) rtmmsg + NLMSG_ALIGN(sizeof(struct ifinfomsg));
rta_buf += rta_add_data(rta_buf, IFLA_ADDRESS, (void *) addr, 6);
id = l_netlink_send(rtnl, RTM_SETLINK, 0, rtmmsg,
rta_buf - (void *) rtmmsg,
cb, user_data, destroy);
l_free(rtmmsg);
return id;
}
void rtnl_ifaddr_extract(const struct ifaddrmsg *ifa, int bytes, void rtnl_ifaddr_extract(const struct ifaddrmsg *ifa, int bytes,
char **label, char **ip, char **broadcast) char **label, char **ip, char **broadcast)
{ {

6
src/rtnlutil.h
View File

@ -26,6 +26,12 @@ uint32_t rtnl_set_linkmode_and_operstate(struct l_netlink *rtnl, int ifindex,
void *user_data, void *user_data,
l_netlink_destroy_func_t destroy); l_netlink_destroy_func_t destroy);
uint32_t rtnl_set_mac(struct l_netlink *rtnl, int ifindex,
const uint8_t addr[static 6],
l_netlink_command_func_t cb,
void *user_data,
l_netlink_destroy_func_t destroy);
void rtnl_ifaddr_extract(const struct ifaddrmsg *ifa, int bytes, void rtnl_ifaddr_extract(const struct ifaddrmsg *ifa, int bytes,
char **label, char **ip, char **broadcast); char **label, char **ip, char **broadcast);
uint32_t rtnl_ifaddr_get(struct l_netlink *rtnl, l_netlink_command_func_t cb, uint32_t rtnl_ifaddr_get(struct l_netlink *rtnl, l_netlink_command_func_t cb,