#include <getopt.h>
#ifndef RTE_EXEC_ENV_WINDOWS
#include <dlfcn.h>
+#include <libgen.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
+#ifndef RTE_EXEC_ENV_WINDOWS
#include <dirent.h>
+#endif
#include <rte_string_fns.h>
#include <rte_eal.h>
#include <rte_version.h>
#include <rte_devargs.h>
#include <rte_memcpy.h>
+#ifndef RTE_EXEC_ENV_WINDOWS
+#include <rte_telemetry.h>
+#endif
#include "eal_internal_cfg.h"
#include "eal_options.h"
static struct shared_driver_list solib_list =
TAILQ_HEAD_INITIALIZER(solib_list);
+#ifndef RTE_EXEC_ENV_WINDOWS
/* Default path of external loadable drivers */
static const char *default_solib_dir = RTE_EAL_PMD_PATH;
+#endif
/*
* Stringified version of solib path used by dpdk-pmdinfo.py
static int mem_parsed;
static int core_parsed;
+/* Allow the application to print its usage message too if set */
+static rte_usage_hook_t rte_application_usage_hook;
+
+/* Returns rte_usage_hook_t */
+rte_usage_hook_t
+eal_get_application_usage_hook(void)
+{
+ return rte_application_usage_hook;
+}
+
+/* Set a per-application usage message */
+rte_usage_hook_t
+rte_set_application_usage_hook(rte_usage_hook_t usage_func)
+{
+ rte_usage_hook_t old_func;
+
+ /* Will be NULL on the first call to denote the last usage routine. */
+ old_func = rte_application_usage_hook;
+ rte_application_usage_hook = usage_func;
+
+ return old_func;
+}
+
+#ifndef RTE_EXEC_ENV_WINDOWS
+static char **eal_args;
+static char **eal_app_args;
+
+#define EAL_PARAM_REQ "/eal/params"
+#define EAL_APP_PARAM_REQ "/eal/app_params"
+
+/* callback handler for telemetry library to report out EAL flags */
+int
+handle_eal_info_request(const char *cmd, const char *params __rte_unused,
+ struct rte_tel_data *d)
+{
+ char **args;
+ int used = 0;
+ int i = 0;
+
+ if (strcmp(cmd, EAL_PARAM_REQ) == 0)
+ args = eal_args;
+ else
+ args = eal_app_args;
+
+ rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
+ if (args == NULL || args[0] == NULL)
+ return 0;
+
+ for ( ; args[i] != NULL; i++)
+ used = rte_tel_data_add_array_string(d, args[i]);
+ return used;
+}
+
+int
+eal_save_args(int argc, char **argv)
+{
+ int i, j;
+
+ rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
+ "Returns EAL commandline parameters used. Takes no parameters");
+ rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
+ "Returns app commandline parameters used. Takes no parameters");
+
+ /* clone argv to report out later. We overprovision, but
+ * this does not waste huge amounts of memory
+ */
+ eal_args = calloc(argc + 1, sizeof(*eal_args));
+ if (eal_args == NULL)
+ return -1;
+
+ for (i = 0; i < argc; i++) {
+ eal_args[i] = strdup(argv[i]);
+ if (strcmp(argv[i], "--") == 0)
+ break;
+ }
+ eal_args[i++] = NULL; /* always finish with NULL */
+
+ /* allow reporting of any app args we know about too */
+ if (i >= argc)
+ return 0;
+
+ eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
+ if (eal_app_args == NULL)
+ return -1;
+
+ for (j = 0; i < argc; j++, i++)
+ eal_app_args[j] = strdup(argv[i]);
+ eal_app_args[j] = NULL;
+
+ return 0;
+}
+#endif
+
static int
eal_option_device_add(enum rte_devtype type, const char *optarg)
{
const char *
eal_get_hugefile_prefix(void)
{
- if (internal_config.hugefile_prefix != NULL)
- return internal_config.hugefile_prefix;
+ const struct internal_config *internal_conf =
+ eal_get_internal_configuration();
+
+ if (internal_conf->hugefile_prefix != NULL)
+ return internal_conf->hugefile_prefix;
return HUGEFILE_PREFIX_DEFAULT;
}
return -1;
}
memset(solib, 0, sizeof(*solib));
- strlcpy(solib->name, path, PATH_MAX-1);
- solib->name[PATH_MAX-1] = 0;
+ strlcpy(solib->name, path, PATH_MAX);
TAILQ_INSERT_TAIL(&solib_list, solib, next);
return 0;
}
+#ifdef RTE_EXEC_ENV_WINDOWS
+int
+eal_plugins_init(void)
+{
+ return 0;
+}
+#else
+
static int
eal_plugindir_init(const char *path)
{
while ((dent = readdir(d)) != NULL) {
struct stat sb;
+ int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
+
+ /* check if name ends in .so */
+ if (strcmp(&dent->d_name[nlen - 3], ".so") != 0)
+ continue;
snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
+ /* if a regular file, add to list to load */
if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
continue;
return (dent == NULL) ? 0 : -1;
}
+static int
+verify_perms(const char *dirpath)
+{
+ struct stat st;
+
+ /* if not root, check down one level first */
+ if (strcmp(dirpath, "/") != 0) {
+ static __thread char last_dir_checked[PATH_MAX];
+ char copy[PATH_MAX];
+ const char *dir;
+
+ strlcpy(copy, dirpath, PATH_MAX);
+ dir = dirname(copy);
+ if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) {
+ if (verify_perms(dir) != 0)
+ return -1;
+ strlcpy(last_dir_checked, dir, PATH_MAX);
+ }
+ }
+
+ /* call stat to check for permissions and ensure not world writable */
+ if (stat(dirpath, &st) != 0) {
+ RTE_LOG(ERR, EAL, "Error with stat on %s, %s\n",
+ dirpath, strerror(errno));
+ return -1;
+ }
+ if (st.st_mode & S_IWOTH) {
+ RTE_LOG(ERR, EAL,
+ "Error, directory path %s is world-writable and insecure\n",
+ dirpath);
+ return -1;
+ }
+
+ return 0;
+}
+
+static void *
+eal_dlopen(const char *pathname)
+{
+ void *retval = NULL;
+ char *realp = realpath(pathname, NULL);
+
+ if (realp == NULL && errno == ENOENT) {
+ /* not a full or relative path, try a load from system dirs */
+ retval = dlopen(pathname, RTLD_NOW);
+ if (retval == NULL)
+ RTE_LOG(ERR, EAL, "%s\n", dlerror());
+ return retval;
+ }
+ if (realp == NULL) {
+ RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n",
+ pathname, strerror(errno));
+ goto out;
+ }
+ if (strnlen(realp, PATH_MAX) == PATH_MAX) {
+ RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n");
+ goto out;
+ }
+
+ /* do permissions checks */
+ if (verify_perms(realp) != 0)
+ goto out;
+
+ retval = dlopen(realp, RTLD_NOW);
+ if (retval == NULL)
+ RTE_LOG(ERR, EAL, "%s\n", dlerror());
+out:
+ free(realp);
+ return retval;
+}
+
int
eal_plugins_init(void)
{
-#ifndef RTE_EXEC_ENV_WINDOWS
struct shared_driver *solib = NULL;
struct stat sb;
- if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
- S_ISDIR(sb.st_mode))
+ /* If we are not statically linked, add default driver loading
+ * path if it exists as a directory.
+ * (Using dlopen with NOLOAD flag on EAL, will return NULL if the EAL
+ * shared library is not already loaded i.e. it's statically linked.)
+ */
+ if (dlopen("librte_eal.so", RTLD_LAZY | RTLD_NOLOAD) != NULL &&
+ *default_solib_dir != '\0' &&
+ stat(default_solib_dir, &sb) == 0 &&
+ S_ISDIR(sb.st_mode))
eal_plugin_add(default_solib_dir);
TAILQ_FOREACH(solib, &solib_list, next) {
} else {
RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
solib->name);
- solib->lib_handle = dlopen(solib->name, RTLD_NOW);
- if (solib->lib_handle == NULL) {
- RTE_LOG(ERR, EAL, "%s\n", dlerror());
+ solib->lib_handle = eal_dlopen(solib->name);
+ if (solib->lib_handle == NULL)
return -1;
- }
}
}
return 0;
-#endif
}
+#endif
/*
* Parse the coremask given as argument (hexadecimal string) and fill
eal_parse_iova_mode(const char *name)
{
int mode;
+ struct internal_config *internal_conf =
+ eal_get_internal_configuration();
if (name == NULL)
return -1;
else
return -1;
- internal_config.iova_mode = mode;
+ internal_conf->iova_mode = mode;
return 0;
}
{
char *end;
uint64_t addr;
+ struct internal_config *internal_conf =
+ eal_get_internal_configuration();
errno = 0;
addr = strtoull(arg, &end, 16);
* it can align to 2MB for x86. So this alignment can also be used
* on x86 and other architectures.
*/
- internal_config.base_virtaddr =
+ internal_conf->base_virtaddr =
RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
return 0;
{
int i;
struct rte_config *cfg = rte_eal_get_configuration();
+ struct internal_config *internal_conf =
+ eal_get_internal_configuration();
if (!core_parsed)
eal_auto_detect_cores(cfg);
- if (internal_config.process_type == RTE_PROC_AUTO)
- internal_config.process_type = eal_proc_type_detect();
+ if (internal_conf->process_type == RTE_PROC_AUTO)
+ internal_conf->process_type = eal_proc_type_detect();
/* default master lcore is the first one */
if (!master_lcore_parsed) {
eal_check_common_options(struct internal_config *internal_cfg)
{
struct rte_config *cfg = rte_eal_get_configuration();
+ const struct internal_config *internal_conf =
+ eal_get_internal_configuration();
if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
"be specified together with --"OPT_NO_HUGE"\n");
return -1;
}
- if (internal_config.force_socket_limits && internal_config.legacy_mem) {
+ if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
" is only supported in non-legacy memory mode\n");
}
git.droids-corp.org / dpdk.git / blobdiff