#include <assert.h>
#include <signal.h>
+#include <common/lttng-kernel.h>
#include <common/common.h>
#include <common/utils.h>
#include <common/compat/getenv.h>
#include <common/compat/prctl.h>
#include <common/unix.h>
#include <common/defaults.h>
+#include <common/lttng-elf.h>
+
+#include <lttng/constant.h>
#include "runas.h"
char path[PATH_MAX];
};
+struct run_as_extract_elf_symbol_offset_data {
+ char function[LTTNG_SYMBOL_NAME_LEN];
+};
+
+struct run_as_extract_sdt_probe_offsets_data {
+ char probe_name[LTTNG_SYMBOL_NAME_LEN];
+ char provider_name[LTTNG_SYMBOL_NAME_LEN];
+};
+
struct run_as_mkdir_ret {
int ret;
};
int ret;
};
+struct run_as_extract_elf_symbol_offset_ret {
+ uint64_t offset;
+};
+
+struct run_as_extract_sdt_probe_offsets_ret {
+ uint32_t num_offset;
+ uint64_t offsets[LTTNG_KERNEL_MAX_UPROBE_NUM];
+};
+
enum run_as_cmd {
RUN_AS_MKDIR,
RUN_AS_OPEN,
RUN_AS_UNLINK,
RUN_AS_RMDIR_RECURSIVE,
RUN_AS_MKDIR_RECURSIVE,
+ RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET,
+ RUN_AS_EXTRACT_SDT_PROBE_OFFSETS,
};
struct run_as_data {
struct run_as_open_data open;
struct run_as_unlink_data unlink;
struct run_as_rmdir_recursive_data rmdir_recursive;
+ struct run_as_extract_elf_symbol_offset_data extract_elf_symbol_offset;
+ struct run_as_extract_sdt_probe_offsets_data extract_sdt_probe_offsets;
} u;
uid_t uid;
gid_t gid;
struct run_as_open_ret open;
struct run_as_unlink_ret unlink;
struct run_as_rmdir_recursive_ret rmdir_recursive;
+ struct run_as_extract_elf_symbol_offset_ret extract_elf_symbol_offset;
+ struct run_as_extract_sdt_probe_offsets_ret extract_sdt_probe_offsets;
} u;
int _errno;
bool _error;
ret_value->u.open.ret = open(data->u.open.path, data->u.open.flags, data->u.open.mode);
ret_value->fd = ret_value->u.open.ret;
ret_value->_errno = errno;
- ret_value->_error = (ret_value->u.open.ret) ? true : false;
+ ret_value->_error = ret_value->u.open.ret < 0;
return ret_value->u.open.ret;
}
return ret_value->u.rmdir_recursive.ret;
}
+#ifdef HAVE_ELF_H
+static
+int _extract_elf_symbol_offset(struct run_as_data *data,
+ struct run_as_ret *ret_value)
+{
+ int ret = 0;
+ ret_value->_error = false;
+
+ ret = lttng_elf_get_symbol_offset(data->fd,
+ data->u.extract_elf_symbol_offset.function,
+ &ret_value->u.extract_elf_symbol_offset.offset);
+ if (ret) {
+ DBG("Failed to extract ELF function offset");
+ ret_value->_error = true;
+ }
+
+ return ret;
+}
+
+static
+int _extract_sdt_probe_offsets(struct run_as_data *data,
+ struct run_as_ret *ret_value)
+{
+ int ret = 0;
+ uint64_t *offsets = NULL;
+ uint32_t num_offset;
+
+ ret_value->_error = false;
+
+ /* On success, this call allocates the offsets paramater. */
+ ret = lttng_elf_get_sdt_probe_offsets(data->fd,
+ data->u.extract_sdt_probe_offsets.provider_name,
+ data->u.extract_sdt_probe_offsets.probe_name,
+ &offsets, &num_offset);
+
+ if (ret) {
+ DBG("Failed to extract SDT probe offsets");
+ ret_value->_error = true;
+ goto end;
+ }
+
+ if (num_offset <= 0 || num_offset > LTTNG_KERNEL_MAX_UPROBE_NUM) {
+ DBG("Wrong number of probes.");
+ ret = -1;
+ ret_value->_error = true;
+ goto free_offset;
+ }
+
+ /* Copy the content of the offsets array to the ret struct. */
+ memcpy(ret_value->u.extract_sdt_probe_offsets.offsets,
+ offsets, num_offset * sizeof(uint64_t));
+
+ ret_value->u.extract_sdt_probe_offsets.num_offset = num_offset;
+
+free_offset:
+ free(offsets);
+end:
+ return ret;
+}
+#else
+static
+int _extract_elf_symbol_offset(struct run_as_data *data,
+ struct run_as_ret *ret_value)
+{
+ ERR("Unimplemented runas command RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET");
+ return -1;
+}
+
+static
+int _extract_sdt_probe_offsets(struct run_as_data *data,
+ struct run_as_ret *ret_value)
+{
+ ERR("Unimplemented runas command RUN_AS_EXTRACT_SDT_PROBE_OFFSETS");
+ return -1;
+}
+#endif
+
static
run_as_fct run_as_enum_to_fct(enum run_as_cmd cmd)
{
return _rmdir_recursive;
case RUN_AS_MKDIR_RECURSIVE:
return _mkdir_recursive;
+ case RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET:
+ return _extract_elf_symbol_offset;
+ case RUN_AS_EXTRACT_SDT_PROBE_OFFSETS:
+ return _extract_sdt_probe_offsets;
default:
ERR("Unknown command %d", (int) cmd);
return NULL;
ssize_t len;
if (fd < 0) {
- ERR("Invalid file description");
+ ERR("Attempt to send invalid file descriptor to master (fd = %i)", fd);
+ /* Return 0 as this is not a fatal error. */
return 0;
}
{
ssize_t len;
- if (*fd < 0) {
- ERR("Invalid file description");
- return 0;
- }
-
len = lttcomm_recv_fds_unix_sock(sock, fd, 1);
if (!len) {
PERROR("lttcomm_recv_fds_unix_sock");
return -1;
}
+ if (*fd < 0) {
+ ERR("Invalid file descriptor received from worker (fd = %i)", *fd);
+ /* Return 0 as this is not a fatal error. */
+ return 0;
+ }
+
return 0;
}
int ret = 0;
switch (cmd) {
+ case RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET:
+ case RUN_AS_EXTRACT_SDT_PROBE_OFFSETS:
+ break;
default:
return 0;
}
+ if (fd < 0) {
+ ERR("Refusing to send invalid fd to worker (fd = %i)", fd);
+ return -1;
+ }
+
ret = do_send_fd(worker->sockpair[0], fd);
if (ret < 0) {
PERROR("do_send_fd");
return 0;
}
+ if (fd < 0) {
+ DBG("Not sending file descriptor to master as it is invalid (fd = %i)", fd);
+ return 0;
+ }
ret = do_send_fd(worker->sockpair[1], fd);
if (ret < 0) {
PERROR("do_send_fd error");
int ret = 0;
switch (cmd) {
+ case RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET:
+ case RUN_AS_EXTRACT_SDT_PROBE_OFFSETS:
+ break;
default:
return 0;
}
int ret = 0;
switch (cmd) {
+ case RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET:
+ case RUN_AS_EXTRACT_SDT_PROBE_OFFSETS:
+ break;
default:
return 0;
}
+ if (fd < 0) {
+ return 0;
+ }
ret = close(fd);
if (ret < 0) {
PERROR("close error");
return ret;
}
+
/*
* Return < 0 on error, 0 if OK, 1 on hangup.
*/
run_as_fct cmd;
uid_t prev_euid;
+ memset(&sendret, 0, sizeof(sendret));
+ sendret.fd = -1;
+
/*
* Stage 1: Receive run_as_data struct from the master.
* The structure contains the command type and all the parameters needed for
if (data.gid != getegid()) {
ret = setegid(data.gid);
if (ret < 0) {
+ sendret._error = true;
+ sendret._errno = errno;
PERROR("setegid");
goto write_return;
}
if (data.uid != prev_euid) {
ret = seteuid(data.uid);
if (ret < 0) {
+ sendret._error = true;
+ sendret._errno = errno;
PERROR("seteuid");
goto write_return;
}
PERROR("Error reading response from run_as");
ret = -1;
ret_value->_errno = errno;
+ goto end;
+ }
+
+ if (ret_value->_error) {
+ /* Skip stage 5 on error as there will be no fd to receive. */
+ goto end;
}
/*
return ret;
}
-static
-int run_as_restart_worker(struct run_as_worker *worker)
-{
- int ret = 0;
- char *procname = NULL;
-
- procname = worker->procname;
-
- /* Close socket to run_as worker process and clean up the zombie process */
- run_as_destroy_worker();
-
- /* Create a new run_as worker process*/
- ret = run_as_create_worker(procname);
- if (ret < 0 ) {
- ERR("Restarting the worker process failed");
- ret = -1;
- goto err;
- }
-err:
- return ret;
-}
-
-static
-int run_as(enum run_as_cmd cmd, struct run_as_data *data,
- struct run_as_ret *ret_value, uid_t uid, gid_t gid)
-{
- int ret, saved_errno;
-
- if (use_clone()) {
- DBG("Using run_as worker");
- pthread_mutex_lock(&worker_lock);
- assert(global_worker);
-
- ret = run_as_cmd(global_worker, cmd, data, ret_value, uid, gid);
- saved_errno = ret_value->_errno;
-
- pthread_mutex_unlock(&worker_lock);
- /*
- * If the worker thread crashed the errno is set to EIO. we log
- * the error and start a new worker process.
- */
- if (ret == -1 && saved_errno == EIO) {
- DBG("Socket closed unexpectedly... "
- "Restarting the worker process");
- ret = run_as_restart_worker(global_worker);
-
- if (ret == -1) {
- ERR("Failed to restart worker process.");
- goto err;
- }
- }
- } else {
- DBG("Using run_as without worker");
- ret = run_as_noworker(cmd, data, ret_value, uid, gid);
- }
-err:
- return ret;
-}
-
-LTTNG_HIDDEN
-int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid)
-{
- struct run_as_data data;
- struct run_as_ret ret;
-
- memset(&data, 0, sizeof(data));
- memset(&ret, 0, sizeof(ret));
- DBG3("mkdir() recursive %s with mode %d for uid %d and gid %d",
- path, (int) mode, (int) uid, (int) gid);
- strncpy(data.u.mkdir.path, path, PATH_MAX - 1);
- data.u.mkdir.path[PATH_MAX - 1] = '\0';
- data.u.mkdir.mode = mode;
-
- run_as(RUN_AS_MKDIR_RECURSIVE, &data, &ret, uid, gid);
- errno = ret._errno;
- return ret.u.mkdir.ret;
-}
-
-LTTNG_HIDDEN
-int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid)
-{
- struct run_as_data data;
- struct run_as_ret ret;
-
- memset(&data, 0, sizeof(data));
- memset(&ret, 0, sizeof(ret));
-
- DBG3("mkdir() %s with mode %d for uid %d and gid %d",
- path, (int) mode, (int) uid, (int) gid);
- strncpy(data.u.mkdir.path, path, PATH_MAX - 1);
- data.u.mkdir.path[PATH_MAX - 1] = '\0';
- data.u.mkdir.mode = mode;
- run_as(RUN_AS_MKDIR, &data, &ret, uid, gid);
- errno = ret._errno;
- return ret.u.mkdir.ret;
-}
-
-LTTNG_HIDDEN
-int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid)
-{
- struct run_as_data data;
- struct run_as_ret ret;
-
- memset(&data, 0, sizeof(data));
- memset(&ret, 0, sizeof(ret));
-
- DBG3("open() %s with flags %X mode %d for uid %d and gid %d",
- path, flags, (int) mode, (int) uid, (int) gid);
- strncpy(data.u.open.path, path, PATH_MAX - 1);
- data.u.open.path[PATH_MAX - 1] = '\0';
- data.u.open.flags = flags;
- data.u.open.mode = mode;
- run_as(RUN_AS_OPEN, &data, &ret, uid, gid);
- errno = ret._errno;
- ret.u.open.ret = ret.fd;
- return ret.u.open.ret;
-}
-
-LTTNG_HIDDEN
-int run_as_unlink(const char *path, uid_t uid, gid_t gid)
-{
- struct run_as_data data;
- struct run_as_ret ret;
-
- memset(&data, 0, sizeof(data));
- memset(&ret, 0, sizeof(ret));
-
- DBG3("unlink() %s with for uid %d and gid %d",
- path, (int) uid, (int) gid);
- strncpy(data.u.unlink.path, path, PATH_MAX - 1);
- data.u.unlink.path[PATH_MAX - 1] = '\0';
- run_as(RUN_AS_UNLINK, &data, &ret, uid, gid);
- errno = ret._errno;
- return ret.u.unlink.ret;
-}
-
-LTTNG_HIDDEN
-int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid)
-{
- struct run_as_data data;
- struct run_as_ret ret;
-
- memset(&data, 0, sizeof(data));
- memset(&ret, 0, sizeof(ret));
-
- DBG3("rmdir_recursive() %s with for uid %d and gid %d",
- path, (int) uid, (int) gid);
- strncpy(data.u.rmdir_recursive.path, path, PATH_MAX - 1);
- data.u.rmdir_recursive.path[PATH_MAX - 1] = '\0';
- run_as(RUN_AS_RMDIR_RECURSIVE, &data, &ret, uid, gid);
- errno = ret._errno;
- return ret.u.rmdir_recursive.ret;
-}
-
static
int reset_sighandler(void)
{
return ret;
}
-LTTNG_HIDDEN
-int run_as_create_worker(char *procname)
+static
+int run_as_create_worker_no_lock(const char *procname,
+ post_fork_cleanup_cb clean_up_func,
+ void *clean_up_user_data)
{
pid_t pid;
int i, ret = 0;
struct run_as_ret recvret;
struct run_as_worker *worker;
- pthread_mutex_lock(&worker_lock);
assert(!global_worker);
if (!use_clone()) {
/*
ret = -ENOMEM;
goto end;
}
- worker->procname = procname;
+ worker->procname = strdup(procname);
+ if (!worker->procname) {
+ ret = -ENOMEM;
+ goto error_procname_alloc;
+ }
/* Create unix socket. */
if (lttcomm_create_anon_unix_socketpair(worker->sockpair) < 0) {
ret = -1;
reset_sighandler();
set_worker_sighandlers();
+ if (clean_up_func) {
+ if (clean_up_func(clean_up_user_data) < 0) {
+ ERR("Run-as post-fork clean-up failed, exiting.");
+ exit(EXIT_FAILURE);
+ }
+ }
- /* The child has no use for this lock. */
- pthread_mutex_unlock(&worker_lock);
/* Just close, no shutdown. */
if (close(worker->sockpair[0])) {
PERROR("close");
ret = -1;
}
worker->sockpair[1] = -1;
+ free(worker->procname);
+ free(worker);
LOG(ret ? PRINT_ERR : PRINT_DBG, "run_as worker exiting (ret = %d)", ret);
exit(ret ? EXIT_FAILURE : EXIT_SUCCESS);
} else {
global_worker = worker;
}
end:
- pthread_mutex_unlock(&worker_lock);
return ret;
/* Error handling. */
worker->sockpair[i] = -1;
}
error_sock:
+ free(worker->procname);
+error_procname_alloc:
free(worker);
- pthread_mutex_unlock(&worker_lock);
return ret;
}
-LTTNG_HIDDEN
-void run_as_destroy_worker(void)
+static
+void run_as_destroy_worker_no_lock(void)
{
struct run_as_worker *worker = global_worker;
DBG("Destroying run_as worker");
- pthread_mutex_lock(&worker_lock);
if (!worker) {
- goto end;
+ return;
}
/* Close unix socket */
DBG("Closing run_as worker socket");
break;
}
}
+ free(worker->procname);
free(worker);
global_worker = NULL;
-end:
+}
+
+static
+int run_as_restart_worker(struct run_as_worker *worker)
+{
+ int ret = 0;
+ char *procname = NULL;
+
+ procname = worker->procname;
+
+ /* Close socket to run_as worker process and clean up the zombie process */
+ run_as_destroy_worker_no_lock();
+
+ /* Create a new run_as worker process*/
+ ret = run_as_create_worker_no_lock(procname, NULL, NULL);
+ if (ret < 0 ) {
+ ERR("Restarting the worker process failed");
+ ret = -1;
+ goto err;
+ }
+err:
+ return ret;
+}
+
+static
+int run_as(enum run_as_cmd cmd, struct run_as_data *data,
+ struct run_as_ret *ret_value, uid_t uid, gid_t gid)
+{
+ int ret, saved_errno;
+
+ pthread_mutex_lock(&worker_lock);
+ if (use_clone()) {
+ DBG("Using run_as worker");
+
+ assert(global_worker);
+
+ ret = run_as_cmd(global_worker, cmd, data, ret_value, uid, gid);
+ saved_errno = ret_value->_errno;
+
+ /*
+ * If the worker thread crashed the errno is set to EIO. we log
+ * the error and start a new worker process.
+ */
+ if (ret == -1 && saved_errno == EIO) {
+ DBG("Socket closed unexpectedly... "
+ "Restarting the worker process");
+ ret = run_as_restart_worker(global_worker);
+ if (ret == -1) {
+ ERR("Failed to restart worker process.");
+ goto err;
+ }
+ }
+ } else {
+ DBG("Using run_as without worker");
+ ret = run_as_noworker(cmd, data, ret_value, uid, gid);
+ }
+err:
+ pthread_mutex_unlock(&worker_lock);
+ return ret;
+}
+
+LTTNG_HIDDEN
+int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+ DBG3("mkdir() recursive %s with mode %d for uid %d and gid %d",
+ path, (int) mode, (int) uid, (int) gid);
+ strncpy(data.u.mkdir.path, path, PATH_MAX - 1);
+ data.u.mkdir.path[PATH_MAX - 1] = '\0';
+ data.u.mkdir.mode = mode;
+
+ run_as(RUN_AS_MKDIR_RECURSIVE, &data, &ret, uid, gid);
+ errno = ret._errno;
+ return ret.u.mkdir.ret;
+}
+
+LTTNG_HIDDEN
+int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+
+ DBG3("mkdir() %s with mode %d for uid %d and gid %d",
+ path, (int) mode, (int) uid, (int) gid);
+ strncpy(data.u.mkdir.path, path, PATH_MAX - 1);
+ data.u.mkdir.path[PATH_MAX - 1] = '\0';
+ data.u.mkdir.mode = mode;
+ run_as(RUN_AS_MKDIR, &data, &ret, uid, gid);
+ errno = ret._errno;
+ return ret.u.mkdir.ret;
+}
+
+LTTNG_HIDDEN
+int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+
+ DBG3("open() %s with flags %X mode %d for uid %d and gid %d",
+ path, flags, (int) mode, (int) uid, (int) gid);
+ strncpy(data.u.open.path, path, PATH_MAX - 1);
+ data.u.open.path[PATH_MAX - 1] = '\0';
+ data.u.open.flags = flags;
+ data.u.open.mode = mode;
+ run_as(RUN_AS_OPEN, &data, &ret, uid, gid);
+ errno = ret._errno;
+ ret.u.open.ret = ret.fd;
+ return ret.u.open.ret;
+}
+
+LTTNG_HIDDEN
+int run_as_unlink(const char *path, uid_t uid, gid_t gid)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+
+ DBG3("unlink() %s with for uid %d and gid %d",
+ path, (int) uid, (int) gid);
+ strncpy(data.u.unlink.path, path, PATH_MAX - 1);
+ data.u.unlink.path[PATH_MAX - 1] = '\0';
+ run_as(RUN_AS_UNLINK, &data, &ret, uid, gid);
+ errno = ret._errno;
+ return ret.u.unlink.ret;
+}
+
+LTTNG_HIDDEN
+int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+
+ DBG3("rmdir_recursive() %s with for uid %d and gid %d",
+ path, (int) uid, (int) gid);
+ strncpy(data.u.rmdir_recursive.path, path, PATH_MAX - 1);
+ data.u.rmdir_recursive.path[PATH_MAX - 1] = '\0';
+ run_as(RUN_AS_RMDIR_RECURSIVE, &data, &ret, uid, gid);
+ errno = ret._errno;
+ return ret.u.rmdir_recursive.ret;
+}
+
+LTTNG_HIDDEN
+int run_as_extract_elf_symbol_offset(int fd, const char* function,
+ uid_t uid, gid_t gid, uint64_t *offset)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+
+ DBG3("extract_elf_symbol_offset() on fd=%d and function=%s "
+ "with for uid %d and gid %d", fd, function, (int) uid, (int) gid);
+
+ data.fd = fd;
+
+ strncpy(data.u.extract_elf_symbol_offset.function, function, LTTNG_SYMBOL_NAME_LEN - 1);
+
+ data.u.extract_elf_symbol_offset.function[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
+
+ run_as(RUN_AS_EXTRACT_ELF_SYMBOL_OFFSET, &data, &ret, uid, gid);
+
+ errno = ret._errno;
+
+ if (ret._error) {
+ return -1;
+ }
+
+ *offset = ret.u.extract_elf_symbol_offset.offset;
+ return 0;
+}
+
+LTTNG_HIDDEN
+int run_as_extract_sdt_probe_offsets(int fd, const char* provider_name,
+ const char* probe_name, uid_t uid, gid_t gid,
+ uint64_t **offsets, uint32_t *num_offset)
+{
+ struct run_as_data data;
+ struct run_as_ret ret;
+
+ memset(&data, 0, sizeof(data));
+ memset(&ret, 0, sizeof(ret));
+
+ DBG3("extract_sdt_probe_offsets() on fd=%d, probe_name=%s and "
+ "provider_name=%s with for uid %d and gid %d", fd, probe_name,
+ provider_name, (int) uid, (int) gid);
+
+ data.fd = fd;
+
+ strncpy(data.u.extract_sdt_probe_offsets.probe_name, probe_name, LTTNG_SYMBOL_NAME_LEN - 1);
+ strncpy(data.u.extract_sdt_probe_offsets.provider_name, provider_name, LTTNG_SYMBOL_NAME_LEN - 1);
+
+ data.u.extract_sdt_probe_offsets.probe_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
+ data.u.extract_sdt_probe_offsets.provider_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
+
+ run_as(RUN_AS_EXTRACT_SDT_PROBE_OFFSETS, &data, &ret, uid, gid);
+
+ errno = ret._errno;
+
+ if (ret._error) {
+ return -1;
+ }
+
+ *num_offset = ret.u.extract_sdt_probe_offsets.num_offset;
+
+ *offsets = zmalloc(*num_offset * sizeof(uint64_t));
+ if (!*offsets) {
+ return -ENOMEM;
+ }
+
+ memcpy(*offsets, ret.u.extract_sdt_probe_offsets.offsets, *num_offset * sizeof(uint64_t));
+ return 0;
+}
+
+LTTNG_HIDDEN
+int run_as_create_worker(const char *procname,
+ post_fork_cleanup_cb clean_up_func,
+ void *clean_up_user_data)
+{
+ int ret;
+
+ pthread_mutex_lock(&worker_lock);
+ ret = run_as_create_worker_no_lock(procname, clean_up_func,
+ clean_up_user_data);
+ pthread_mutex_unlock(&worker_lock);
+ return ret;
+}
+
+LTTNG_HIDDEN
+void run_as_destroy_worker(void)
+{
+ pthread_mutex_lock(&worker_lock);
+ run_as_destroy_worker_no_lock();
pthread_mutex_unlock(&worker_lock);
}
projects / lttng-tools.git / blobdiff