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/*
* Copyright (c) 2015 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 <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/plugin/plugin.h>
#include <vnet/ethernet/ethernet.h>
#include <api/vpe_msg_enum.h>
/** \mainpage Virtual Packet Edge Documentation
* \section intro_sec Introduction
*
* VPE is a specific vector packet processing application,
* designed to steer packets to/from tenant virtual machines.
*
*/
static void
vpe_main_init (vlib_main_t * vm)
{
if (CLIB_DEBUG > 0)
vlib_unix_cli_set_prompt ("DBGvpp# ");
else
vlib_unix_cli_set_prompt ("vpp# ");
/* Turn off network stack components which we don't want */
vlib_mark_init_function_complete (vm, srp_init);
}
/*
* Load plugins from /usr/lib/vpp_plugins by default
*/
char *vlib_plugin_path = "/usr/lib/vpp_plugins";
void *vnet_get_handoff_structure (void)
{
static vnet_plugin_handoff_t _rv, *rv = &_rv;
rv->vnet_main = vnet_get_main();
rv->ethernet_main = ðernet_main;
return (void *)rv;
}
int main (int argc, char * argv[])
{
int i;
vlib_main_t * vm = &vlib_global_main;
void vl_msg_api_set_first_available_msg_id (u16);
uword main_heap_size = (1ULL << 30);
u8 * sizep;
u32 size;
void vlib_set_get_handoff_structure_cb (void *cb);
/*
* Load startup config from file.
* usage: vpp -c /etc/vpp/startup.conf
*/
if ((argc == 3) && !strncmp(argv[1], "-c", 2))
{
FILE * fp;
char inbuf[4096];
int argc_ = 1;
char ** argv_ = NULL;
char * arg = NULL;
char * p;
fp = fopen (argv[2], "r");
if (fp == NULL)
{
fprintf(stderr, "open configuration file '%s' failed\n", argv[2]);
return 1;
}
argv_ = calloc(1, sizeof(char *));
if (argv_ == NULL)
return 1;
arg = strndup(argv[0], 1024);
if (arg == NULL)
return 1;
argv_[0] = arg;
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)
return 1;
argv_ = tmp;
arg = strndup(p, 1024);
if (arg == NULL)
return 1;
argv_[argc_ - 1] = arg;
p = strtok(NULL, " \t\n");
}
}
fclose(fp);
char ** tmp = realloc(argv_, (argc_ + 1) * sizeof(char *));
if (tmp == NULL)
return 1;
argv_ = tmp;
argv_[argc_] = NULL;
argc = argc_;
argv = argv_;
}
/*
* 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], "plugin_path", 11)) {
if (i < (argc-1))
vlib_plugin_path = argv[++i];
} else 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) {
fprintf
(stderr,
"warning: heapsize parse error '%s', use default %lld\n",
argv[i], (long long int) main_heap_size);
goto defaulted;
}
main_heap_size = size;
if (*sizep == 'g' || *sizep == 'G')
main_heap_size <<= 30;
else if (*sizep == 'm' || *sizep == 'M')
main_heap_size <<= 20;
}
}
defaulted:
/* Set up the plugin message ID allocator right now... */
vl_msg_api_set_first_available_msg_id (VL_MSG_FIRST_AVAILABLE);
/* Allocate main heap */
if (clib_mem_init (0, main_heap_size)) {
vm->init_functions_called = hash_create (0, /* value bytes */ 0);
vpe_main_init(vm);
vlib_set_get_handoff_structure_cb (&vnet_get_handoff_structure);
return vlib_unix_main (argc, argv);
} else {
{
int rv __attribute__((unused)) =
write (2, "Main heap allocation failure!\r\n", 31);
}
return 1;
}
}
static clib_error_t *
heapsize_config (vlib_main_t * vm, unformat_input_t * input)
{
u32 junk;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
if (unformat (input, "%dm", &junk)
|| unformat (input, "%dM", &junk)
|| unformat (input, "%dg", &junk)
|| unformat (input, "%dG", &junk))
return 0;
else
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, input);
}
return 0;
}
VLIB_CONFIG_FUNCTION (heapsize_config, "heapsize");
static clib_error_t *
plugin_path_config (vlib_main_t * vm, unformat_input_t * input)
{
u8 * junk;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
if (unformat (input, "%s", &junk)) {
vec_free(junk);
return 0;
}
else
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, input);
}
return 0;
}
VLIB_CONFIG_FUNCTION (plugin_path_config, "plugin_path");
void vl_msg_api_post_mortem_dump(void);
void os_panic (void)
{
vl_msg_api_post_mortem_dump();
abort ();
}
void vhost_user_unmap_all (void) __attribute__((weak));
void vhost_user_unmap_all (void) { }
void os_exit (int code)
{
static int recursion_block;
if (code)
{
if (recursion_block)
abort();
recursion_block = 1;
vl_msg_api_post_mortem_dump();
vhost_user_unmap_all();
abort();
}
exit (code);
}
void vl_msg_api_barrier_sync(void)
{
vlib_worker_thread_barrier_sync (vlib_get_main());
}
void vl_msg_api_barrier_release(void)
{
vlib_worker_thread_barrier_release (vlib_get_main());
}
/* This application needs 1 thread stack for the stats pthread */
u32 vlib_app_num_thread_stacks_needed (void)
{
return 1;
}
/*
* Depending on the configuration selected above,
* it may be necessary to generate stub graph nodes.
* It is never OK to ignore "node 'x' refers to unknown node 'y'
* messages!
*/
#if IPV6SR == 0
#define foreach_ipv6_sr_stub_node \
_(ipsec-output, ipsec_output)
#else
#define foreach_ipv6_sr_stub_node
#endif
#define _(n,m) \
static uword \
m##_node_fn (vlib_main_t *vm, \
vlib_node_runtime_t *node, \
vlib_frame_t *frame) \
{ \
clib_warning("unimplemented, leaking buffers..."); \
return 0; \
} \
\
VLIB_REGISTER_NODE(m##_node) = { \
.function = m##_node_fn, \
.name = #n, \
.vector_size = sizeof(u32), \
.type = VLIB_NODE_TYPE_INTERNAL, \
};
foreach_ipv6_sr_stub_node;
#undef _
#if CLIB_DEBUG > 0
static clib_error_t *
test_crash_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
u64 * p = (u64 *)0xdefec8ed;
*p = 0xdeadbeef;
/* Not so much... */
return 0;
}
VLIB_CLI_COMMAND (test_crash_command, static) = {
.path = "test crash",
.short_help = "crash the bus!",
.function = test_crash_command_fn,
};
#endif
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