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kernel-netlink: Automatically bring up XFRM interfaces after creation

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This commit is contained in:
Tobias Brunner 2023-01-09 14:54:28 +01:00
parent e1ff1eefcf
commit 0cc780d317
1 changed files with 33 additions and 1 deletions
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34
src/libcharon/plugins/kernel_netlink/kernel_netlink_xfrmi.c
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@ -47,6 +47,38 @@ struct private_kernel_netlink_xfrmi_t {
netlink_socket_t *socket; netlink_socket_t *socket;
}; };
/**
* "up" the interface with the given name
*/
static bool interface_up(private_kernel_netlink_xfrmi_t *this, char *name)
{
netlink_buf_t request;
struct nlmsghdr *hdr;
struct ifinfomsg *msg;
memset(&request, 0, sizeof(request));
hdr = &request.hdr;
hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
hdr->nlmsg_type = RTM_SETLINK;
hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
msg = NLMSG_DATA(hdr);
msg->ifi_family = AF_UNSPEC;
msg->ifi_change |= IFF_UP;
msg->ifi_flags |= IFF_UP;
netlink_add_attribute(hdr, IFLA_IFNAME, chunk_from_str(name),
sizeof(request));
if (this->socket->send_ack(this->socket, hdr) != SUCCESS)
{
DBG1(DBG_KNL, "failed to bring up XFRM interface '%s'", name);
return FALSE;
}
return TRUE;
}
METHOD(kernel_netlink_xfrmi_t, create, bool, METHOD(kernel_netlink_xfrmi_t, create, bool,
private_kernel_netlink_xfrmi_t *this, char *name, uint32_t if_id, private_kernel_netlink_xfrmi_t *this, char *name, uint32_t if_id,
char *phys, uint32_t mtu) char *phys, uint32_t mtu)
@ -106,7 +138,7 @@ METHOD(kernel_netlink_xfrmi_t, create, bool,
switch (this->socket->send_ack(this->socket, hdr)) switch (this->socket->send_ack(this->socket, hdr))
{ {
case SUCCESS: case SUCCESS:
return TRUE; return interface_up(this, name);
case ALREADY_DONE: case ALREADY_DONE:
DBG1(DBG_KNL, "XFRM interface '%s' already exists", name); DBG1(DBG_KNL, "XFRM interface '%s' already exists", name);
break; break;