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/*
* Copyright (c) 2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <sched.h>
#include <fcntl.h>
#include <ctype.h>
#include <sys/socket.h>
#include <net/if.h>
#include <plugins/linux-cp/lcp.h>
lcp_main_t lcp_main;
u8 *
lcp_get_default_ns (void)
{
lcp_main_t *lcpm = &lcp_main;
if (!lcpm->default_namespace || lcpm->default_namespace[0] == 0)
return NULL;
return lcpm->default_namespace;
}
int
lcp_get_default_ns_fd (void)
{
lcp_main_t *lcpm = &lcp_main;
return lcpm->default_ns_fd;
}
/*
* ns is expected to be or look like a NUL-terminated C string.
*/
int
lcp_set_default_ns (u8 *ns)
{
lcp_main_t *lcpm = &lcp_main;
char *p;
int len;
u8 *s;
p = (char *) ns;
len = clib_strnlen (p, LCP_NS_LEN);
if (len >= LCP_NS_LEN)
return -1;
if (!p || *p == 0)
{
lcpm->default_namespace = NULL;
if (lcpm->default_ns_fd > 0)
close (lcpm->default_ns_fd);
lcpm->default_ns_fd = 0;
return 0;
}
vec_validate_init_c_string (lcpm->default_namespace, p,
clib_strnlen (p, LCP_NS_LEN));
s = format (0, "/var/run/netns/%s%c", (char *) lcpm->default_namespace, 0);
lcpm->default_ns_fd = open ((char *) s, O_RDONLY);
vec_free (s);
return 0;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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