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authorDaniel Baumann <daniel.baumann@progress-linux.org>2021-02-07 11:45:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2021-02-07 11:45:55 +0000
commita8220ab2d293bb7f4b014b79d16b2fb05090fa93 (patch)
tree77f0a30f016c0925cf7ee9292e644bba183c2774 /daemon/daemon.c
parentAdding upstream version 1.19.0. (diff)
downloadnetdata-a8220ab2d293bb7f4b014b79d16b2fb05090fa93.tar.xz
netdata-a8220ab2d293bb7f4b014b79d16b2fb05090fa93.zip
Adding upstream version 1.29.0.upstream/1.29.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--daemon/daemon.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/daemon/daemon.c b/daemon/daemon.c
index 4ad082b95..83191109a 100644
--- a/daemon/daemon.c
+++ b/daemon/daemon.c
@@ -4,6 +4,28 @@
#include <sched.h>
char pidfile[FILENAME_MAX + 1] = "";
+char claimingdirectory[FILENAME_MAX + 1];
+char exepath[FILENAME_MAX + 1];
+
+void get_netdata_execution_path(void)
+{
+ int ret;
+ size_t exepath_size = 0;
+ struct passwd *passwd = NULL;
+ char *user = NULL;
+
+ passwd = getpwuid(getuid());
+ user = (passwd && passwd->pw_name) ? passwd->pw_name : "";
+
+ exepath_size = sizeof(exepath) - 1;
+ ret = uv_exepath(exepath, &exepath_size);
+ if (0 != ret) {
+ error("uv_exepath(\"%s\", %u) (user: %s) failed (%s).", exepath, (unsigned)exepath_size, user,
+ uv_strerror(ret));
+ fatal("Cannot start netdata without getting execution path.");
+ }
+ exepath[exepath_size] = '\0';
+}
static void chown_open_file(int fd, uid_t uid, gid_t gid) {
if(fd == -1) return;
@@ -36,6 +58,22 @@ void create_needed_dir(const char *dir, uid_t uid, gid_t gid)
error("Cannot create directory '%s'", dir);
}
+void clean_directory(char *dirname)
+{
+ DIR *dir = opendir(dirname);
+ if(!dir) return;
+
+ int dir_fd = dirfd(dir);
+ struct dirent *de = NULL;
+
+ while((de = readdir(dir)))
+ if(de->d_type == DT_REG)
+ if (unlinkat(dir_fd, de->d_name, 0))
+ error("Cannot delete %s/%s", dirname, de->d_name);
+
+ closedir(dir);
+}
+
int become_user(const char *username, int pid_fd) {
int am_i_root = (getuid() == 0)?1:0;
@@ -50,6 +88,10 @@ int become_user(const char *username, int pid_fd) {
create_needed_dir(netdata_configured_cache_dir, uid, gid);
create_needed_dir(netdata_configured_varlib_dir, uid, gid);
+ create_needed_dir(netdata_configured_lock_dir, uid, gid);
+ create_needed_dir(claimingdirectory, uid, gid);
+
+ clean_directory(netdata_configured_lock_dir);
if(pidfile[0]) {
if(chown(pidfile, uid, gid) == -1)
@@ -434,6 +476,9 @@ int become_daemon(int dont_fork, const char *user)
// never become a problem
sched_setscheduler_set();
+ // Set claiming directory based on user config directory with correct ownership
+ snprintfz(claimingdirectory, FILENAME_MAX, "%s/cloud.d", netdata_configured_varlib_dir);
+
if(user && *user) {
if(become_user(user, pidfd) != 0) {
error("Cannot become user '%s'. Continuing as we are.", user);
@@ -443,6 +488,10 @@ int become_daemon(int dont_fork, const char *user)
else {
create_needed_dir(netdata_configured_cache_dir, getuid(), getgid());
create_needed_dir(netdata_configured_varlib_dir, getuid(), getgid());
+ create_needed_dir(netdata_configured_lock_dir, getuid(), getgid());
+ create_needed_dir(claimingdirectory, getuid(), getgid());
+
+ clean_directory(netdata_configured_lock_dir);
}
if(pidfd != -1)