ipng/lcpng
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Copy review notes from mgsmith@ from https://gerrit.fd.io/r/c/vpp/+/33481/12..13

Browse Source
This commit is contained in:
Pim van Pelt
2021-08-30 20:37:05 +00:00
parent 98a84d0fa7
commit 15efc4efc2
1 changed files with 23 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
lcpng_interface.c
View File

@ -349,16 +349,8 @@ lcp_netlink_add_link_vlan (int parent, u32 vlan, u16 proto, const char *name)
rtnl_link_set_link (link, parent);
rtnl_link_set_name (link, name);
if ((err = rtnl_link_vlan_set_id (link, vlan)) < 0) {
LCP_ITF_PAIR_ERR ("netlink_add_link_vlan: vlan set error: %s", nl_geterror(err));
return clib_error_return (NULL, "Unable to set VLAN %d on link %s: %d", vlan, name, err);
}
if ((err = rtnl_link_vlan_set_protocol (link, htons(proto))) < 0) {
LCP_ITF_PAIR_ERR ("netlink_add_link_vlan: proto set error: %s", nl_geterror(err));
return clib_error_return (NULL, "Unable to set proto %d on link %s: %d", proto, name, err);
}
rtnl_link_vlan_set_id (link, vlan);
rtnl_link_vlan_set_protocol (link, htons (proto));
if ((err = rtnl_link_add (sk, link, NLM_F_CREATE)) < 0) {
LCP_ITF_PAIR_ERR ("netlink_add_link_vlan: link add error: %s", nl_geterror(err));
@ -703,7 +695,6 @@ lcp_itf_set_interface_addr (const lcp_itf_pair_t *lip)
typedef struct
{
u32 sup_if_index;
u32 vlan;
bool dot1ad;
@ -711,20 +702,23 @@ typedef struct
} lcp_itf_match_t;
static walk_rc_t
lcp_itf_pair_find_walk (vnet_main_t *vnm, vnet_sw_interface_t *sw, void *arg)
lcp_itf_pair_find_walk (vnet_main_t *vnm, u32 sw_if_index, void *arg)
{
lcp_itf_match_t *match = arg;
const vnet_sw_interface_t *sw;
if ((sw->sub.eth.inner_vlan_id == 0) &&
sw = vnet_get_sw_interface (vnm, sw_if_index);
if (sw && (sw->sub.eth.inner_vlan_id == 0) &&
(sw->sub.eth.outer_vlan_id == match->vlan) &&
(sw->sub.eth.flags.dot1ad == match->dot1ad) &&
(sw->sup_sw_if_index == match->sup_if_index))
(sw->sub.eth.flags.dot1ad == match->dot1ad))
{
LCP_ITF_PAIR_DBG (
"find_walk: found match outer %d dot1ad %d inner-dot1q %d parent %U",
sw->sub.eth.outer_vlan_id, sw->sub.eth.flags.dot1ad,
sw->sub.eth.inner_vlan_id, format_vnet_sw_if_index_name,
vnet_get_main (), sw->sup_sw_if_index);
LCP_ITF_PAIR_DBG ("find_walk: found match outer %d dot1ad %d "
"inner-dot1q %d: interface %U",
sw->sub.eth.outer_vlan_id, sw->sub.eth.flags.dot1ad,
sw->sub.eth.inner_vlan_id,
format_vnet_sw_if_index_name, vnet_get_main (),
sw->sw_if_index);
match->matched_sw_if_index = sw->sw_if_index;
return WALK_STOP;
}
@ -733,50 +727,26 @@ lcp_itf_pair_find_walk (vnet_main_t *vnm, vnet_sw_interface_t *sw, void *arg)
}
/* Return the index of the sub-int on the phy that has the given vlan and
* proto, optionally in the given 'ns' namespace (which can be NULL, signifying
* the 'self' namespace
* proto.
*/
static index_t
lcp_itf_pair_find_by_outer_vlan (u32 sup_if_index, u8 *ns, u16 vlan,
bool dot1ad)
lcp_itf_pair_find_by_outer_vlan (u32 sup_if_index, u16 vlan, bool dot1ad)
{
lcp_itf_match_t match;
int orig_ns_fd = -1;
int vif_ns_fd = -1;
index_t ret = INDEX_INVALID;
const vnet_hw_interface_t *hw;
if (ns && ns[0] != 0)
{
orig_ns_fd = clib_netns_open (NULL /* self */);
vif_ns_fd = clib_netns_open (ns);
if (orig_ns_fd == -1 || vif_ns_fd == -1)
goto exit;
clib_setns (vif_ns_fd);
}
clib_memset (&match, 0, sizeof (match));
match.vlan = vlan;
match.dot1ad = dot1ad;
match.sup_if_index = sup_if_index;
match.matched_sw_if_index = INDEX_INVALID;
hw = vnet_get_sup_hw_interface (vnet_get_main (), sup_if_index);
vnet_sw_interface_walk (vnet_get_main (), lcp_itf_pair_find_walk, &match);
vnet_hw_interface_walk_sw (vnet_get_main (), hw->hw_if_index,
lcp_itf_pair_find_walk, &match);
if (match.matched_sw_if_index >= vec_len (lip_db_by_phy))
{
goto exit;
}
return INDEX_INVALID;
ret = lip_db_by_phy[match.matched_sw_if_index];
exit:
if (orig_ns_fd != -1)
{
clib_setns (orig_ns_fd);
close (orig_ns_fd);
}
if (vif_ns_fd != -1)
close (vif_ns_fd);
return ret;
return lip_db_by_phy[match.matched_sw_if_index];
}
int
@ -851,7 +821,7 @@ lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name,
proto=inner_proto;
parent_if_index = lcp_itf_pair_find_by_phy (sw->sup_sw_if_index);
linux_parent_if_index = lcp_itf_pair_find_by_outer_vlan (
sw->sup_sw_if_index, ns, sw->sub.eth.outer_vlan_id,
sw->sup_sw_if_index, sw->sub.eth.outer_vlan_id,
sw->sub.eth.flags.dot1ad);
if (INDEX_INVALID == linux_parent_if_index) {
LCP_ITF_PAIR_ERR ("pair_create: can't find LCP for outer vlan %d proto %s on %U",