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platform: change links via event netlink socket

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This commit is contained in:
Thomas Haller
2015-12-14 19:18:35 +01:00
parent 1097967077
commit c73b9f6529
2 changed files with 42 additions and 32 deletions
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64
src/platform/nm-linux-platform.c
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@@ -3790,13 +3790,19 @@ do_delete_object (NMPlatform *platform, const NMPObject *obj_id, struct nl_msg *
}
static NMPlatformError
do_change_link (NMPlatform *platform, int ifindex, struct nl_msg *nlmsg)
do_change_link (NMPlatform *platform,
int ifindex,
struct nl_msg *nlmsg)
{
NMLinuxPlatformPrivate *priv = NM_LINUX_PLATFORM_GET_PRIVATE (platform);
WaitForNlResponseResult seq_result = WAIT_FOR_NL_RESPONSE_RESULT_UNKNOWN;
int nle;
char s_buf[256];
NMPlatformError result = NM_PLATFORM_ERROR_SUCCESS;
NMLogLevel log_level = LOGL_DEBUG;
const char *log_result = "failure", *log_detail = "";
retry:
nle = nl_send_auto_complete (priv->nlh, nlmsg);
nle = _nl_send_auto_with_seq (platform, nlmsg, &seq_result);
if (nle < 0) {
_LOGE ("do-change-link[%d]: failure sending netlink request \"%s\" (%d)",
ifindex,
@@ -3804,35 +3810,39 @@ retry:
return NM_PLATFORM_ERROR_UNSPECIFIED;
}
nle = nl_wait_for_ack (priv->nlh);
if ( nle == -NLE_OPNOTSUPP
/* always refetch the link after changing it. There seems to be issues
* and we sometimes lack events. Nuke it from the orbit... */
delayed_action_schedule (platform, DELAYED_ACTION_TYPE_REFRESH_LINK, GINT_TO_POINTER (ifindex));
delayed_action_handle_all (platform, FALSE);
nm_assert (seq_result);
if ( NM_IN_SET (-((int) seq_result), EOPNOTSUPP)
&& nlmsg_hdr (nlmsg)->nlmsg_type == RTM_NEWLINK) {
nlmsg_hdr (nlmsg)->nlmsg_type = RTM_SETLINK;
goto retry;
}
switch (nle) {
case -NLE_SUCCESS:
_LOGD ("do-change-link[%d]: success changing link", ifindex);
break;
case -NLE_EXIST:
_LOGD ("do-change-link[%d]: success changing link: %s (%d)",
ifindex, nl_geterror (nle), -nle);
break;
case -NLE_OBJ_NOTFOUND:
_LOGD ("do-change-link[%d]: failure changing link: firmware not found (%s, %d)",
ifindex, nl_geterror (nle), -nle);
return NM_PLATFORM_ERROR_NO_FIRMWARE;
default:
_LOGE ("do-change-link[%d]: failure changing link: netlink error (%s, %d)",
ifindex, nl_geterror (nle), -nle);
return NM_PLATFORM_ERROR_UNSPECIFIED;
if (seq_result == WAIT_FOR_NL_RESPONSE_RESULT_RESPONSE_OK) {
log_result = "success";
} else if (NM_IN_SET (-((int) seq_result), EEXIST, EADDRINUSE)) {
/* */
} else if (NM_IN_SET (-((int) seq_result), ESRCH, ENOENT)) {
log_detail = ", firmware not found";
result = NM_PLATFORM_ERROR_NO_FIRMWARE;
} else {
log_level = LOGL_ERR;
result = NM_PLATFORM_ERROR_UNSPECIFIED;
}
_NMLOG (log_level,
"do-change-link[%d]: %s changing link: %s%s",
ifindex,
log_result,
wait_for_nl_response_to_string (seq_result, s_buf, sizeof (s_buf)),
log_detail);
/* FIXME: as we modify the link via a separate socket, the cache is not in
* sync and we have to refetch the link. */
do_request_link (platform, ifindex, NULL);
return NM_PLATFORM_ERROR_SUCCESS;
return result;
}
static gboolean
@@ -4056,7 +4066,7 @@ link_set_user_ipv6ll_enabled (NMPlatform *platform, int ifindex, gboolean enable
if ( !nlmsg
|| !_nl_msg_new_link_set_afspec (nlmsg,
mode))
return FALSE;
g_return_val_if_reached (FALSE);
return do_change_link (platform, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
}
@@ -4745,7 +4755,7 @@ link_vlan_change (NMPlatform *platform,
new_n_ingress_map,
new_egress_map,
new_n_egress_map))
return FALSE;
g_return_val_if_reached (FALSE);
return do_change_link (platform, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
}