#define FILE_DESCRIPTORS_INCREASE_STEP 100
+// types for struct file_descriptor->type
+typedef enum fd_filetype {
+ FILETYPE_OTHER,
+ FILETYPE_FILE,
+ FILETYPE_PIPE,
+ FILETYPE_SOCKET,
+ FILETYPE_INOTIFY,
+ FILETYPE_EVENTFD,
+ FILETYPE_EVENTPOLL,
+ FILETYPE_TIMERFD,
+ FILETYPE_SIGNALFD
+} FD_FILETYPE;
+
struct file_descriptor {
avl avl;
const char *name;
uint32_t hash;
- char type;
+ FD_FILETYPE type;
int count;
int pos;
} *all_files = NULL;
all_files_len = 0,
all_files_size = 0;
-// types for struct file_descriptor->type
-#define FILETYPE_OTHER 0
-#define FILETYPE_FILE 1
-#define FILETYPE_PIPE 2
-#define FILETYPE_SOCKET 3
-#define FILETYPE_INOTIFY 4
-#define FILETYPE_EVENTFD 5
-#define FILETYPE_EVENTPOLL 6
-#define FILETYPE_TIMERFD 7
-#define FILETYPE_SIGNALFD 8
-
-
// ----------------------------------------------------------------------------
// callback required by fatal()
all_files_size += FILE_DESCRIPTORS_INCREASE_STEP;
}
-static inline int file_descriptor_set_on_empty_slot(const char *name, uint32_t hash, int type) {
+static inline int file_descriptor_set_on_empty_slot(const char *name, uint32_t hash, FD_FILETYPE type) {
// check we have enough memory to add it
if(!all_files || all_files_len == all_files_size)
all_files_grow();
}
// not found
- int type;
+ FD_FILETYPE type;
if(name[0] == '/') type = FILETYPE_FILE;
else if(strncmp(name, "pipe:", 5) == 0) type = FILETYPE_PIPE;
else if(strncmp(name, "socket:", 7) == 0) type = FILETYPE_SOCKET;
w->openeventpolls++;
break;
- default:
+ case FILETYPE_OTHER:
w->openother++;
break;
}
memmove(&me_last, &me, sizeof(struct rusage));
}
+ static char created_charts = 0;
+ if(unlikely(!created_charts)) {
+ created_charts = 1;
+
+ fprintf(stdout
+ , "CHART netdata.apps_cpu '' 'Apps Plugin CPU' 'milliseconds/s' apps.plugin netdata.apps_cpu stacked 140000 %1$d\n"
+ "DIMENSION user '' incremental 1 1000\n"
+ "DIMENSION system '' incremental 1 1000\n"
+ "CHART netdata.apps_files '' 'Apps Plugin Files' 'files/s' apps.plugin netdata.apps_files line 140001 %1$d\n"
+ "DIMENSION files '' incremental 1 1\n"
+ "DIMENSION pids '' absolute 1 1\n"
+ "DIMENSION fds '' absolute 1 1\n"
+ "DIMENSION targets '' absolute 1 1\n"
+ "CHART netdata.apps_fix '' 'Apps Plugin Normalization Ratios' 'percentage' apps.plugin netdata.apps_fix line 140002 %1$d\n"
+ "DIMENSION utime '' absolute 1 %2$llu\n"
+ "DIMENSION stime '' absolute 1 %2$llu\n"
+ "DIMENSION gtime '' absolute 1 %2$llu\n"
+ "DIMENSION minflt '' absolute 1 %2$llu\n"
+ "DIMENSION majflt '' absolute 1 %2$llu\n"
+ , update_every
+ , RATES_DETAIL
+ );
+
+ if(include_exited_childs)
+ fprintf(stdout
+ , "CHART netdata.apps_children_fix '' 'Apps Plugin Exited Children Normalization Ratios' 'percentage' apps.plugin netdata.apps_children_fix line 140003 %1$d\n"
+ "DIMENSION cutime '' absolute 1 %2$llu\n"
+ "DIMENSION cstime '' absolute 1 %2$llu\n"
+ "DIMENSION cgtime '' absolute 1 %2$llu\n"
+ "DIMENSION cminflt '' absolute 1 %2$llu\n"
+ "DIMENSION cmajflt '' absolute 1 %2$llu\n"
+ , update_every
+ , RATES_DETAIL
+ );
+ }
+
fprintf(stdout,
"BEGIN netdata.apps_cpu %llu\n"
"SET user = %llu\n"
}
}
-int main(int argc, char **argv)
-{
+static int am_i_running_as_root() {
+ uid_t uid = getuid(), euid = geteuid();
+
+ if(uid == 0 || euid == 0) {
+ if(debug) info("I am running with escalated privileges, uid = %u, euid = %u.", uid, euid);
+ return 1;
+ }
+
+ if(debug) info("I am not running with escalated privileges, uid = %u, euid = %u.", uid, euid);
+ return 0;
+}
+
+#ifdef HAVE_CAPABILITY
+static int check_capabilities() {
+ if(!CAP_IS_SUPPORTED(CAP_DAC_READ_SEARCH)) {
+ error("This system does not support CAP_DAC_READ_SEARCH capability. Please setuid to root apps.plugin.");
+ return 0;
+ }
+ else if(debug)
+ info("System has CAP_DAC_READ_SEARCH capability.");
+
+ if(!CAP_IS_SUPPORTED(CAP_SYS_PTRACE)) {
+ error("This system does not support CAP_SYS_PTRACE capability. Please setuid to root apps.plugin.");
+ return 0;
+ }
+ else if(debug)
+ info("System has CAP_SYS_PTRACE capability.");
+
+ cap_t caps = cap_get_proc();
+ if(!caps) {
+ error("Cannot get current capabilities.");
+ return 0;
+ }
+ else if(debug)
+ info("Received my capabilities from the system.");
+
+ int ret = 1;
+
+ cap_flag_value_t cfv = CAP_CLEAR;
+ if(cap_get_flag(caps, CAP_DAC_READ_SEARCH, CAP_EFFECTIVE, &cfv) == -1) {
+ error("Cannot find if CAP_DAC_READ_SEARCH is effective.");
+ ret = 0;
+ }
+ else {
+ if(cfv != CAP_SET) {
+ error("apps.plugin should run with CAP_DAC_READ_SEARCH.");
+ ret = 0;
+ }
+ else if(debug)
+ info("apps.plugin runs with CAP_DAC_READ_SEARCH.");
+ }
+
+ cfv = CAP_CLEAR;
+ if(cap_get_flag(caps, CAP_SYS_PTRACE, CAP_EFFECTIVE, &cfv) == -1) {
+ error("Cannot find if CAP_SYS_PTRACE is effective.");
+ ret = 0;
+ }
+ else {
+ if(cfv != CAP_SET) {
+ error("apps.plugin should run with CAP_SYS_PTRACE.");
+ ret = 0;
+ }
+ else if(debug)
+ info("apps.plugin runs with CAP_SYS_PTRACE.");
+ }
+
+ cap_free(caps);
+
+ return ret;
+}
+#else
+static int check_capabilities() {
+ return 0;
+}
+#endif
+
+int main(int argc, char **argv) {
// debug_flags = D_PROCFILE;
// set the name for logging
parse_args(argc, argv);
+ if(!check_capabilities()) {
+ if(!am_i_running_as_root()) {
+ uid_t uid = getuid(), euid = geteuid();
+#ifdef HAVE_CAPABILITY
+ error("apps.plugin should either run as root (now running with uid %u, euid %u) or have special capabilities. "
+ "Without these, apps.plugin cannot report disk I/O utilization of other processes. "
+ "To enable capabilities run: sudo setcap cap_dac_read_search,cap_sys_ptrace+ep %s; "
+ "To enable setuid to root run: sudo chown root %s; sudo chmod 4755 %s; "
+ , uid, euid, argv[0], argv[0], argv[0]
+ );
+#else
+ error("apps.plugin should either run as root (now running with uid %u, euid %u) or have special capabilities. "
+ "Without these, apps.plugin cannot report disk I/O utilization of other processes. "
+ "Your system does not support capabilities. "
+ "To enable setuid to root run: sudo chown root %s; sudo chmod 4755 %s; "
+ , uid, euid, argv[0], argv[0]
+ );
+#endif
+ }
+ }
+
all_pids_sortlist = callocz(sizeof(pid_t), (size_t)pid_max);
all_pids = callocz(sizeof(struct pid_stat *), (size_t) pid_max);
- fprintf(stdout,
- "CHART netdata.apps_cpu '' 'Apps Plugin CPU' 'milliseconds/s' apps.plugin netdata.apps_cpu stacked 140000 %1$d\n"
- "DIMENSION user '' incremental 1 1000\n"
- "DIMENSION system '' incremental 1 1000\n"
- "CHART netdata.apps_files '' 'Apps Plugin Files' 'files/s' apps.plugin netdata.apps_files line 140001 %1$d\n"
- "DIMENSION files '' incremental 1 1\n"
- "DIMENSION pids '' absolute 1 1\n"
- "DIMENSION fds '' absolute 1 1\n"
- "DIMENSION targets '' absolute 1 1\n"
- "CHART netdata.apps_fix '' 'Apps Plugin Normalization Ratios' 'percentage' apps.plugin netdata.apps_fix line 140002 %1$d\n"
- "DIMENSION utime '' absolute 1 %2$llu\n"
- "DIMENSION stime '' absolute 1 %2$llu\n"
- "DIMENSION gtime '' absolute 1 %2$llu\n"
- "DIMENSION minflt '' absolute 1 %2$llu\n"
- "DIMENSION majflt '' absolute 1 %2$llu\n"
- , update_every
- , RATES_DETAIL
- );
-
- if(include_exited_childs)
- fprintf(stdout,
- "CHART netdata.apps_children_fix '' 'Apps Plugin Exited Children Normalization Ratios' 'percentage' apps.plugin netdata.apps_children_fix line 140003 %1$d\n"
- "DIMENSION cutime '' absolute 1 %2$llu\n"
- "DIMENSION cstime '' absolute 1 %2$llu\n"
- "DIMENSION cgtime '' absolute 1 %2$llu\n"
- "DIMENSION cminflt '' absolute 1 %2$llu\n"
- "DIMENSION cmajflt '' absolute 1 %2$llu\n"
- , update_every
- , RATES_DETAIL
- );
-
usec_t step = update_every * USEC_PER_SEC;
global_iterations_counter = 1;
heartbeat_t hb;
projects / netdata.git / blobdiff