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|
/*
* Copyright (c) 2018-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this
* 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 <vcl/vcl_private.h>
/* NOTE: _vppcom_main is only used until the heap is allocated.
* Do not access it directly -- use vcm which will point to
* the heap allocated copy after init.
*/
vppcom_main_t _vppcom_main = {
.debug = VPPCOM_DEBUG_INIT,
.is_init = 0,
.app_index = ~0,
};
vppcom_main_t *vcm = &_vppcom_main;
void
vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
{
ASSERT (vcl_cfg);
vcl_cfg->heapsize = (256ULL << 20);
vcl_cfg->max_workers = 16;
vcl_cfg->vpp_api_q_length = 1024;
vcl_cfg->segment_baseva = HIGH_SEGMENT_BASEVA;
vcl_cfg->segment_size = (256 << 20);
vcl_cfg->add_segment_size = (128 << 20);
vcl_cfg->preallocated_fifo_pairs = 8;
vcl_cfg->rx_fifo_size = (1 << 20);
vcl_cfg->tx_fifo_size = (1 << 20);
vcl_cfg->event_queue_size = 2048;
vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
vcl_cfg->app_timeout = 10 * 60.0;
vcl_cfg->session_timeout = 10 * 60.0;
vcl_cfg->accept_timeout = 60.0;
vcl_cfg->event_ring_size = (128 << 10);
vcl_cfg->event_log_path = "/dev/shm";
}
#define VCFG_DBG(_lvl, _fmt, _args...) \
{ \
if (vcm->debug > _lvl) \
fprintf (stderr, _fmt "\n", ##_args); \
}
void
vppcom_cfg_heapsize (char *conf_fname)
{
vppcom_cfg_t *vcl_cfg = &vcm->cfg;
FILE *fp;
char inbuf[4096];
int argc = 1;
char **argv = NULL;
char *arg = NULL;
char *p;
int i;
u8 *sizep;
u32 size;
void *vcl_mem;
void *heap;
fp = fopen (conf_fname, "r");
if (fp == NULL)
{
VCFG_DBG (0, "VCL<%d>: using default heapsize %lu (0x%lx)",
getpid (), (unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
argv = calloc (1, sizeof (char *));
if (argv == NULL)
{
VCFG_DBG (0, "VCL<%d>: calloc failed, using default heapsize %lu"
" (0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
while (1)
{
if (fgets (inbuf, 4096, fp) == 0)
break;
p = strtok (inbuf, " \t\n");
while (p != NULL)
{
if (*p == '#')
break;
argc++;
char **tmp = realloc (argv, argc * sizeof (char *));
if (tmp == NULL)
{
VCFG_DBG (0, "VCL<%d>: realloc failed, using default "
"heapsize %lu (0x%lx)", getpid (),
(unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
argv = tmp;
arg = strndup (p, 1024);
if (arg == NULL)
{
VCFG_DBG (0, "VCL<%d>: strndup failed, using default "
"heapsize %lu (0x%lx)", getpid (),
(unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
argv[argc - 1] = arg;
p = strtok (NULL, " \t\n");
}
}
fclose (fp);
fp = NULL;
char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
if (tmp == NULL)
{
VCFG_DBG (0, "VCL<%d>: realloc failed, using default heapsize %lu "
"(0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
argv = tmp;
argv[argc] = NULL;
/*
* Look for and parse the "heapsize" config parameter.
* Manual since none of the clib infra has been bootstrapped yet.
*
* Format: heapsize <nn>[mM][gG]
*/
for (i = 1; i < (argc - 1); i++)
{
if (!strncmp (argv[i], "heapsize", 8))
{
sizep = (u8 *) argv[i + 1];
size = 0;
while (*sizep >= '0' && *sizep <= '9')
{
size *= 10;
size += *sizep++ - '0';
}
if (size == 0)
{
VCFG_DBG (0, "VCL<%d>: parse error '%s %s', using default "
"heapsize %lu (0x%lx)", getpid (), argv[i],
argv[i + 1], (unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
if (*sizep == 'g' || *sizep == 'G')
vcl_cfg->heapsize = size << 30;
else if (*sizep == 'm' || *sizep == 'M')
vcl_cfg->heapsize = size << 20;
else
{
VCFG_DBG (0, "VCL<%d>: parse error '%s %s', using default "
"heapsize %lu (0x%lx)", getpid (), argv[i],
argv[i + 1], (unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
goto defaulted;
}
}
free (argv[i]);
}
defaulted:
if (fp != NULL)
fclose (fp);
if (argv != NULL)
free (argv);
vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
if (vcl_mem == MAP_FAILED)
{
VCFG_DBG (0, "VCL<%d>: ERROR: mmap(0, %lu == 0x%lx, "
"PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, "
"-1, 0) failed!", getpid (),
(unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
ASSERT (vcl_mem != MAP_FAILED);
return;
}
heap = clib_mem_init_thread_safe (vcl_mem, vcl_cfg->heapsize);
if (!heap)
{
fprintf (stderr, "VCL<%d>: ERROR: clib_mem_init() failed!", getpid ());
ASSERT (heap);
return;
}
vcl_mem = clib_mem_alloc (sizeof (_vppcom_main));
if (!vcl_mem)
{
clib_warning ("VCL<%d>: ERROR: clib_mem_alloc() failed!", getpid ());
ASSERT (vcl_mem);
return;
}
clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main));
vcm = vcl_mem;
VCFG_DBG (0, "VCL<%d>: allocated VCL heap = %p, size %lu (0x%lx)",
getpid (), heap, (unsigned long) vcl_cfg->heapsize,
(unsigned long) vcl_cfg->heapsize);
}
void
vppcom_cfg_read_file (char *conf_fname)
{
vppcom_cfg_t *vcl_cfg = &vcm->cfg;
int fd;
unformat_input_t _input, *input = &_input;
unformat_input_t _line_input, *line_input = &_line_input;
u8 vc_cfg_input = 0, *chroot_path;
struct stat s;
u32 uid, gid, q_len;
fd = open (conf_fname, O_RDONLY);
if (fd < 0)
{
VCFG_DBG (0, "VCL<%d>: using default configuration.", getpid ());
goto file_done;
}
if (fstat (fd, &s) < 0)
{
VCFG_DBG (0, "VCL<%d>: failed to stat `%s' using default configuration",
getpid (), conf_fname);
goto file_done;
}
if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
{
VCFG_DBG (0, "VCL<%d>: not a regular file `%s', using default "
"configuration", getpid (), conf_fname);
goto file_done;
}
unformat_init_clib_file (input, fd);
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
(void) unformat_user (input, unformat_line_input, line_input);
unformat_skip_white_space (line_input);
if (unformat (line_input, "vcl {"))
{
vc_cfg_input = 1;
unformat_free (line_input);
continue;
}
if (vc_cfg_input)
{
if (unformat (line_input, "heapsize %U", unformat_memory_size,
&vcl_cfg->heapsize))
{
VCFG_DBG (0, "VCL<%d>: configured heapsize %lu", getpid (),
(unsigned long) vcl_cfg->heapsize);
}
else
if (unformat
(line_input, "max-workers %u", &vcl_cfg->max_workers))
{
VCFG_DBG (0, "VCL<%d>: configured max-workers %u", getpid (),
vcl_cfg->max_workers);
}
else if (unformat (line_input, "api-prefix %s", &chroot_path))
{
vec_terminate_c_string (chroot_path);
if (vcl_cfg->vpp_api_filename)
vec_free (vcl_cfg->vpp_api_filename);
vcl_cfg->vpp_api_filename = format (0, "/%s-vpe-api%c",
chroot_path, 0);
vl_set_memory_root_path ((char *) chroot_path);
VCFG_DBG (0, "VCL<%d>: configured api-prefix (%s) and api "
"filename (%s)", getpid (), chroot_path,
vcl_cfg->vpp_api_filename);
chroot_path = 0; /* Don't vec_free() it! */
}
else if (unformat (line_input, "api-socket-name %s",
&vcl_cfg->vpp_api_socket_name))
{
vec_terminate_c_string (vcl_cfg->vpp_api_socket_name);
VCFG_DBG (0, "VCL<%d>: configured api-socket-name (%s)",
getpid (), vcl_cfg->vpp_api_socket_name);
}
else if (unformat (line_input, "vpp-api-q-length %d", &q_len))
{
if (q_len < vcl_cfg->vpp_api_q_length)
{
fprintf (stderr,
"VCL<%d>: ERROR: configured vpp-api-q-length "
"(%u) is too small! Using default: %u ", getpid (),
q_len, vcl_cfg->vpp_api_q_length);
}
else
{
vcl_cfg->vpp_api_q_length = q_len;
VCFG_DBG (0, "VCL<%d>: configured vpp-api-q-length %u",
getpid (), vcl_cfg->vpp_api_q_length);
}
}
else if (unformat (line_input, "uid %d", &uid))
{
vl_set_memory_uid (uid);
VCFG_DBG (0, "VCL<%d>: configured uid %d", getpid (), uid);
}
else if (unformat (line_input, "gid %d", &gid))
{
vl_set_memory_gid (gid);
VCFG_DBG (0, "VCL<%d>: configured gid %d", getpid (), gid);
}
else if (unformat (line_input, "segment-baseva 0x%x",
&vcl_cfg->segment_baseva))
{
VCFG_DBG (0, "VCL<%d>: configured segment_baseva 0x%lx",
getpid (), (unsigned long) vcl_cfg->segment_baseva);
}
else if (unformat (line_input, "segment-size 0x%x",
&vcl_cfg->segment_size))
{
VCFG_DBG (0, "VCL<%d>: configured segment_size 0x%x (%d)",
getpid (), vcl_cfg->segment_size,
vcl_cfg->segment_size);
}
else if (unformat (line_input, "segment-size %u",
&vcl_cfg->segment_size))
{
VCFG_DBG (0, "VCL<%d>: configured segment_size %u (0x%x)",
getpid (), vcl_cfg->segment_size,
vcl_cfg->segment_size);
}
else if (unformat (line_input, "add-segment-size 0x%x",
&vcl_cfg->add_segment_size))
{
VCFG_DBG (0, "VCL<%d>: configured add_segment_size 0x%x (%u)",
getpid (), vcl_cfg->add_segment_size,
vcl_cfg->add_segment_size);
}
else if (unformat (line_input, "add-segment-size %u",
&vcl_cfg->add_segment_size))
{
VCFG_DBG (0, "VCL<%d>: configured add_segment_size %u (0x%x)",
getpid (), vcl_cfg->add_segment_size,
vcl_cfg->add_segment_size);
}
else if (unformat (line_input, "preallocated-fifo-pairs %u",
&vcl_cfg->preallocated_fifo_pairs))
{
VCFG_DBG (0, "VCL<%d>: configured preallocated_fifo_pairs %u "
"(0x%x)", getpid (), vcl_cfg->preallocated_fifo_pairs,
vcl_cfg->preallocated_fifo_pairs);
}
else if (unformat (line_input, "rx-fifo-size 0x%x",
&vcl_cfg->rx_fifo_size))
{
VCFG_DBG (0, "VCL<%d>: configured rx_fifo_size 0x%x (%u)",
getpid (), vcl_cfg->rx_fifo_size,
vcl_cfg->rx_fifo_size);
}
else if (unformat (line_input, "rx-fifo-size %u",
&vcl_cfg->rx_fifo_size))
{
VCFG_DBG (0, "VCL<%d>: configured rx_fifo_size %u (0x%x)",
getpid (), vcl_cfg->rx_fifo_size,
vcl_cfg->rx_fifo_size);
}
else if (unformat (line_input, "tx-fifo-size 0x%x",
&vcl_cfg->tx_fifo_size))
{
VCFG_DBG (0, "VCL<%d>: configured tx_fifo_size 0x%x (%u)",
getpid (), vcl_cfg->tx_fifo_size,
vcl_cfg->tx_fifo_size);
}
else if (unformat (line_input, "tx-fifo-size %u",
&vcl_cfg->tx_fifo_size))
{
VCFG_DBG (0, "VCL<%d>: configured tx_fifo_size %u (0x%x)",
getpid (), vcl_cfg->tx_fifo_size,
vcl_cfg->tx_fifo_size);
}
else if (unformat (line_input, "event-queue-size 0x%x",
&vcl_cfg->event_queue_size))
{
VCFG_DBG (0, "VCL<%d>: configured event_queue_size 0x%x (%u)",
getpid (), vcl_cfg->event_queue_size,
vcl_cfg->event_queue_size);
}
else if (unformat (line_input, "event-queue-size %u",
&vcl_cfg->event_queue_size))
{
VCFG_DBG (0, "VCL<%d>: configured event_queue_size %u (0x%x)",
getpid (), vcl_cfg->event_queue_size,
vcl_cfg->event_queue_size);
}
else if (unformat (line_input, "listen-queue-size 0x%x",
&vcl_cfg->listen_queue_size))
{
VCFG_DBG (0, "VCL<%d>: configured listen_queue_size 0x%x (%u)",
getpid (), vcl_cfg->listen_queue_size,
vcl_cfg->listen_queue_size);
}
else if (unformat (line_input, "listen-queue-size %u",
&vcl_cfg->listen_queue_size))
{
VCFG_DBG (0, "VCL<%d>: configured listen_queue_size %u (0x%x)",
getpid (), vcl_cfg->listen_queue_size,
vcl_cfg->listen_queue_size);
}
else if (unformat (line_input, "app-timeout %f",
&vcl_cfg->app_timeout))
{
VCFG_DBG (0, "VCL<%d>: configured app_timeout %f",
getpid (), vcl_cfg->app_timeout);
}
else if (unformat (line_input, "session-timeout %f",
&vcl_cfg->session_timeout))
{
VCFG_DBG (0, "VCL<%d>: configured session_timeout %f",
getpid (), vcl_cfg->session_timeout);
}
else if (unformat (line_input, "accept-timeout %f",
&vcl_cfg->accept_timeout))
{
VCFG_DBG (0, "VCL<%d>: configured accept_timeout %f",
getpid (), vcl_cfg->accept_timeout);
}
else if (unformat (line_input, "app-proxy-transport-tcp"))
{
vcl_cfg->app_proxy_transport_tcp = 1;
VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%d)",
getpid (), vcl_cfg->app_proxy_transport_tcp);
}
else if (unformat (line_input, "app-proxy-transport-udp"))
{
vcl_cfg->app_proxy_transport_udp = 1;
VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_udp (%d)",
getpid (), vcl_cfg->app_proxy_transport_udp);
}
else if (unformat (line_input, "app-scope-local"))
{
vcl_cfg->app_scope_local = 1;
VCFG_DBG (0, "VCL<%d>: configured app_scope_local (%d)",
getpid (), vcl_cfg->app_scope_local);
}
else if (unformat (line_input, "app-scope-global"))
{
vcl_cfg->app_scope_global = 1;
VCFG_DBG (0, "VCL<%d>: configured app_scope_global (%d)",
getpid (), vcl_cfg->app_scope_global);
}
else if (unformat (line_input, "namespace-secret %lu",
&vcl_cfg->namespace_secret))
{
VCFG_DBG (0, "VCL<%d>: configured namespace_secret %llu "
"(0x%llx)", getpid (),
(unsigned long long) vcl_cfg->namespace_secret,
(unsigned long long) vcl_cfg->namespace_secret);
}
else if (unformat (line_input, "namespace-id %v",
&vcl_cfg->namespace_id))
{
u32 max_nsid_vec_len = vcl_max_nsid_len ();
u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id);
if (nsid_vec_len > max_nsid_vec_len)
{
_vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len;
VCFG_DBG (0, "VCL<%d>: configured namespace_id is too long,"
" truncated to %d characters!",
getpid (), max_nsid_vec_len);
}
VCFG_DBG (0, "VCL<%d>: configured namespace_id %s",
getpid (), (char *) vcl_cfg->namespace_id);
}
else if (unformat (line_input, "use-mq-eventfd"))
{
vcl_cfg->use_mq_eventfd = 1;
VCFG_DBG (0, "VCL<%d>: configured with mq with eventfd",
getpid ());
}
else if (unformat (line_input, "}"))
{
vc_cfg_input = 0;
VCFG_DBG (0, "VCL<%d>: completed parsing vppcom config!",
getpid ());
unformat_free (line_input);
goto input_done;
}
else
{
if (line_input->buffer[line_input->index] != '#')
{
clib_warning ("VCL<%d>: Unknown vppcom config option: '%s'",
getpid (), (char *)
&line_input->buffer[line_input->index]);
}
}
unformat_free (line_input);
}
}
input_done:
unformat_free (input);
file_done:
if (fd >= 0)
close (fd);
}
void
vppcom_cfg (vppcom_cfg_t * vcl_cfg)
{
char *conf_fname, *env_var_str;
vppcom_cfg_init (vcl_cfg);
env_var_str = getenv (VPPCOM_ENV_DEBUG);
if (env_var_str)
{
u32 tmp;
if (sscanf (env_var_str, "%u", &tmp) != 1)
{
VCFG_DBG (0, "VCL<%d>: WARNING: Invalid debug level specified "
"in the environment variable " VPPCOM_ENV_DEBUG
" (%s)!\n", getpid (), env_var_str);
}
else
{
vcm->debug = tmp;
VCFG_DBG (0, "VCL<%d>: configured VCL debug level (%u) from "
VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug);
}
}
conf_fname = getenv (VPPCOM_ENV_CONF);
if (!conf_fname)
conf_fname = VPPCOM_CONF_DEFAULT;
vppcom_cfg_heapsize (conf_fname);
vppcom_cfg_read_file (conf_fname);
env_var_str = getenv (VPPCOM_ENV_API_PREFIX);
if (env_var_str)
{
if (vcl_cfg->vpp_api_filename)
vec_free (vcl_cfg->vpp_api_filename);
vcl_cfg->vpp_api_filename = format (0, "/%s-vpe-api%c", env_var_str, 0);
vl_set_memory_root_path ((char *) env_var_str);
VCFG_DBG (0, "VCL<%d>: configured api prefix (%s) and filename (%s) "
"from " VPPCOM_ENV_API_PREFIX "!", getpid (), env_var_str,
vcl_cfg->vpp_api_filename);
}
env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID);
if (env_var_str)
{
u32 ns_id_vec_len = strlen (env_var_str);
vec_reset_length (vcm->cfg.namespace_id);
vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1);
clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len);
VCFG_DBG (0, "VCL<%d>: configured namespace_id (%s) from "
VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), env_var_str);
}
env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET);
if (env_var_str)
{
u64 tmp;
if (sscanf (env_var_str, "%llu", (unsigned long long *) &tmp) != 1)
{
VCFG_DBG (0, "VCL<%d>: WARNING: Invalid namespace secret specified"
" in the environment variable "
VPPCOM_ENV_APP_NAMESPACE_SECRET " (%s)!\n", getpid (),
env_var_str);
}
else
{
vcm->cfg.namespace_secret = tmp;
VCFG_DBG (0, "VCL<%d>: configured namespace secret (%llu) from "
VPPCOM_ENV_APP_NAMESPACE_SECRET "!", getpid (),
(unsigned long long) vcm->cfg.namespace_secret);
}
}
if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP))
{
vcm->cfg.app_proxy_transport_tcp = 1;
VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%u) from "
VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (),
vcm->cfg.app_proxy_transport_tcp);
}
if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP))
{
vcm->cfg.app_proxy_transport_udp = 1;
VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_udp (%u) from "
VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (),
vcm->cfg.app_proxy_transport_udp);
}
if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL))
{
vcm->cfg.app_scope_local = 1;
VCFG_DBG (0, "VCL<%d>: configured app_scope_local (%u) from "
VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (),
vcm->cfg.app_scope_local);
}
if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL))
{
vcm->cfg.app_scope_global = 1;
VCFG_DBG (0, "VCL<%d>: configured app_scope_global (%u) from "
VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (),
vcm->cfg.app_scope_global);
}
env_var_str = getenv (VPPCOM_ENV_VPP_API_SOCKET);
if (env_var_str)
{
vcm->cfg.vpp_api_socket_name = format (0, "%s%c", env_var_str, 0);
VCFG_DBG (0, "VCL<%d>: configured api-socket-name (%s)", getpid (),
vcl_cfg->vpp_api_socket_name);
}
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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