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authorDave Wallace <dwallacelf@gmail.com>2018-02-16 18:26:11 -0500
committerKeith Burns <alagalah@gmail.com>2018-02-19 14:57:39 +0000
commitb5a86eed8bd889f5c8986e5fa569a50b997ccd77 (patch)
treec7d7d4ac845fbf7c6abf3fb116d52ad2ab9faad7 /src/vcl
parent1d3ab72941432c0f690841924630c45d282e1e88 (diff)
VCL: config api prefix using env var.
- Configure vpp api prefix using VCL_API_PREFIX environment variable. - Prepend api prefix to vpp api filename when connecting to vpp. - Fix stale vcl_cfg ptr after heap allocation. - Cleanup misleading warning messages wrt. reading the vcl config file. Change-Id: I908c9b567ff4f6f0c21ae43a4627a1a3202a3290 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Diffstat (limited to 'src/vcl')
-rw-r--r--src/vcl/vppcom.c115
-rw-r--r--src/vcl/vppcom.h1
2 files changed, 95 insertions, 21 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 34d6203a3c4..d81e327c7f1 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -190,6 +190,7 @@ typedef struct vppcom_cfg_t_
f64 accept_timeout;
u32 event_ring_size;
char *event_log_path;
+ u8 *vpp_api_filename;
} vppcom_cfg_t;
typedef struct vppcom_main_t_
@@ -199,7 +200,7 @@ typedef struct vppcom_main_t_
u32 *client_session_index_fifo;
int main_cpu;
- /* vpe input queue */
+ /* vpp input queue */
svm_queue_t *vl_input_queue;
/* API client handle */
@@ -423,13 +424,17 @@ static int
vppcom_connect_to_vpp (char *app_name)
{
api_main_t *am = &api_main;
+ vppcom_cfg_t *vcl_cfg = &vcm->cfg;
int rv = VPPCOM_OK;
+ if (!vcl_cfg->vpp_api_filename)
+ vcl_cfg->vpp_api_filename = format (0, "/vpe-api%c", 0);
+
if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: app (%s) connecting to VPP api...",
- getpid (), app_name);
+ clib_warning ("VCL<%d>: app (%s) connecting to VPP api (%s)...",
+ getpid (), app_name, vcl_cfg->vpp_api_filename);
- if (vl_client_connect_to_vlib ("/vpe-api", app_name,
+ if (vl_client_connect_to_vlib ((char *) vcl_cfg->vpp_api_filename, app_name,
vcm->cfg.vpp_api_q_length) < 0)
{
clib_warning ("VCL<%d>: app (%s) connect failed!", getpid (), app_name);
@@ -1736,12 +1741,20 @@ vppcom_cfg_heapsize (char *conf_fname)
if (fp == NULL)
{
if (VPPCOM_DEBUG > 0)
- fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
+ clib_warning ("VCL<%d>: using default heapsize %lld (0x%llx)",
+ getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize);
goto defaulted;
}
+
argv = calloc (1, sizeof (char *));
if (argv == NULL)
- goto defaulted;
+ {
+ if (VPPCOM_DEBUG > 0)
+ clib_warning ("VCL<%d>: calloc failed, using default "
+ "heapsize %lld (0x%llx)",
+ getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize);
+ goto defaulted;
+ }
while (1)
{
@@ -1755,11 +1768,25 @@ vppcom_cfg_heapsize (char *conf_fname)
argc++;
char **tmp = realloc (argv, argc * sizeof (char *));
if (tmp == NULL)
- goto defaulted;
+ {
+ if (VPPCOM_DEBUG > 0)
+ clib_warning ("VCL<%d>: realloc failed, "
+ "using default heapsize %lld (0x%llx)",
+ getpid (), vcl_cfg->heapsize,
+ vcl_cfg->heapsize);
+ goto defaulted;
+ }
argv = tmp;
arg = strndup (p, 1024);
if (arg == NULL)
- goto defaulted;
+ {
+ if (VPPCOM_DEBUG > 0)
+ clib_warning ("VCL<%d>: strndup failed, "
+ "using default heapsize %lld (0x%llx)",
+ getpid (), vcl_cfg->heapsize,
+ vcl_cfg->heapsize);
+ goto defaulted;
+ }
argv[argc - 1] = arg;
p = strtok (NULL, " \t\n");
}
@@ -1770,7 +1797,13 @@ vppcom_cfg_heapsize (char *conf_fname)
char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
if (tmp == NULL)
- goto defaulted;
+ {
+ if (VPPCOM_DEBUG > 0)
+ clib_warning ("VCL<%d>: realloc failed, "
+ "using default heapsize %lld (0x%llx)",
+ getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize);
+ goto defaulted;
+ }
argv = tmp;
argv[argc] = NULL;
@@ -1832,18 +1865,21 @@ defaulted:
"PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, "
"-1, 0) failed!",
getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize);
+ ASSERT (vcl_mem != MAP_FAILED);
return;
}
heap = clib_mem_init (vcl_mem, vcl_cfg->heapsize);
if (!heap)
{
clib_warning ("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;
}
@@ -1871,7 +1907,7 @@ vppcom_cfg_read (char *conf_fname)
if (fd < 0)
{
if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: open configuration file '%s' failed!",
+ clib_warning ("VCL<%d>: using default configuration.",
getpid (), conf_fname);
goto file_done;
}
@@ -1879,15 +1915,16 @@ vppcom_cfg_read (char *conf_fname)
if (fstat (fd, &s) < 0)
{
if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: failed to stat `%s'", getpid (), conf_fname);
+ clib_warning ("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)))
{
if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: not a regular file `%s'",
- getpid (), conf_fname);
+ clib_warning ("VCL<%d>: not a regular file `%s', "
+ "using default configuration", getpid (), conf_fname);
goto file_done;
}
@@ -1919,10 +1956,16 @@ vppcom_cfg_read (char *conf_fname)
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);
+
if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: configured api-prefix %s",
- getpid (), chroot_path);
+ clib_warning ("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, "vpp-api-q-length %d", &q_len))
@@ -2215,16 +2258,46 @@ vppcom_app_create (char *app_name)
}
conf_fname = getenv (VPPCOM_ENV_CONF);
if (!conf_fname)
- {
- conf_fname = VPPCOM_CONF_DEFAULT;
- if (VPPCOM_DEBUG > 0)
- clib_warning ("VCL<%d>: getenv '%s' failed!", getpid (),
- VPPCOM_ENV_CONF);
- }
+ conf_fname = VPPCOM_CONF_DEFAULT;
vppcom_cfg_heapsize (conf_fname);
+ vcl_cfg = &vcm->cfg;
clib_fifo_validate (vcm->client_session_index_fifo,
vcm->cfg.listen_queue_size);
vppcom_cfg_read (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);
+
+ if (VPPCOM_DEBUG > 0)
+ clib_warning ("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_SECRET);
+ if (env_var_str)
+ {
+ u64 tmp;
+ if (sscanf (env_var_str, "%lu", &tmp) != 1)
+ clib_warning ("VCL<%d>: 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;
+ if (VPPCOM_DEBUG > 0)
+ clib_warning ("VCL<%d>: configured namespace secret "
+ "(%lu) from " VPPCOM_ENV_APP_NAMESPACE_ID "!",
+ getpid (), vcm->cfg.namespace_secret);
+ }
+ }
env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID);
if (env_var_str)
{
diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h
index d681dee49a9..9d09f060b8b 100644
--- a/src/vcl/vppcom.h
+++ b/src/vcl/vppcom.h
@@ -35,6 +35,7 @@ extern "C"
#define VPPCOM_CONF_DEFAULT "/etc/vpp/vcl.conf"
#define VPPCOM_ENV_CONF "VCL_CONFIG"
#define VPPCOM_ENV_DEBUG "VCL_DEBUG"
+#define VPPCOM_ENV_API_PREFIX "VCL_API_PREFIX"
#define VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "VCL_APP_PROXY_TRANSPORT_TCP"
#define VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "VCL_APP_PROXY_TRANSPORT_UDP"
#define VPPCOM_ENV_APP_NAMESPACE_ID "VCL_APP_NAMESPACE_ID"