X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fhddtemp.c;h=4428b75ddc086db0be4e8cff39f95f6437e09e89;hb=e6f09ba88ed8258e5bc3eb3834fb841eba77da39;hp=80b3419bee76d3e96efacb242bdba4f946efc5be;hpb=56f1b53ff9d854740201b1070d3cd2637be56b6e;p=collectd.git diff --git a/src/hddtemp.c b/src/hddtemp.c index 80b3419b..4428b75d 100644 --- a/src/hddtemp.c +++ b/src/hddtemp.c @@ -1,6 +1,8 @@ /** * collectd - src/hddtemp.c * Copyright (C) 2005,2006 Vincent Stehlé + * Copyright (C) 2006-2010 Florian octo Forster + * Copyright (C) 2008 Sebastian Harl * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -19,6 +21,7 @@ * Authors: * Vincent Stehlé * Florian octo Forster + * Sebastian Harl * * TODO: * Do a pass, some day, and spare some memory. We consume too much for now @@ -30,15 +33,12 @@ #include "common.h" #include "plugin.h" #include "configfile.h" -#include "utils_debug.h" -#define MODULE_NAME "hddtemp" - -#include -#include -#include -#include -#include /* for basename */ +# include +# include +# include +# include +# include /* for basename */ #if HAVE_LINUX_MAJOR_H # include @@ -47,38 +47,15 @@ #define HDDTEMP_DEF_HOST "127.0.0.1" #define HDDTEMP_DEF_PORT "7634" -/* BUFFER_SIZE - Size of the buffer we use to receive from the hddtemp daemon. */ -#define BUFFER_SIZE 1024 - -static char *filename_format = "hddtemp-%s.rrd"; - -static char *ds_def[] = -{ - "DS:value:GAUGE:"COLLECTD_HEARTBEAT":U:U", - NULL -}; -static int ds_num = 1; - -static char *config_keys[] = +static const char *config_keys[] = { "Host", - "Port", - NULL + "Port" }; -static int config_keys_num = 2; - -typedef struct hddname -{ - int major; - int minor; - char *name; - struct hddname *next; -} hddname_t; +static int config_keys_num = STATIC_ARRAY_SIZE (config_keys); -static hddname_t *first_hddname = NULL; static char *hddtemp_host = NULL; -static char *hddtemp_port = NULL; +static char hddtemp_port[16]; /* * NAME @@ -117,7 +94,10 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) int ai_return; memset (&ai_hints, '\0', sizeof (ai_hints)); - ai_hints.ai_flags = AI_ADDRCONFIG; + ai_hints.ai_flags = 0; +#ifdef AI_ADDRCONFIG + ai_hints.ai_flags |= AI_ADDRCONFIG; +#endif ai_hints.ai_family = PF_UNSPEC; ai_hints.ai_socktype = SOCK_STREAM; ai_hints.ai_protocol = IPPROTO_TCP; @@ -127,14 +107,17 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) host = HDDTEMP_DEF_HOST; port = hddtemp_port; - if (port == NULL) + if (strlen (port) == 0) port = HDDTEMP_DEF_PORT; if ((ai_return = getaddrinfo (host, port, &ai_hints, &ai_list)) != 0) { - syslog (LOG_ERR, "hddtemp: getaddrinfo (%s, %s): %s", + char errbuf[1024]; + ERROR ("hddtemp plugin: getaddrinfo (%s, %s): %s", host, port, - ai_return == EAI_SYSTEM ? strerror (errno) : gai_strerror (ai_return)); + (ai_return == EAI_SYSTEM) + ? sstrerror (errno, errbuf, sizeof (errbuf)) + : gai_strerror (ai_return)); return (-1); } @@ -142,18 +125,24 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) { /* create our socket descriptor */ - if ((fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype, ai_ptr->ai_protocol)) < 0) + fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype, + ai_ptr->ai_protocol); + if (fd < 0) { - syslog (LOG_ERR, "hddtemp: socket: %s", - strerror (errno)); + char errbuf[1024]; + ERROR ("hddtemp plugin: socket: %s", + sstrerror (errno, errbuf, sizeof (errbuf))); continue; } /* connect to the hddtemp daemon */ - if (connect (fd, (struct sockaddr *) ai_ptr->ai_addr, ai_ptr->ai_addrlen)) + if (connect (fd, (struct sockaddr *) ai_ptr->ai_addr, + ai_ptr->ai_addrlen)) { - DBG ("hddtemp: connect (%s, %s): %s", host, port, - strerror (errno)); + char errbuf[1024]; + INFO ("hddtemp plugin: connect (%s, %s) failed: %s", + host, port, + sstrerror (errno, errbuf, sizeof (errbuf))); close (fd); fd = -1; continue; @@ -168,7 +157,7 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) if (fd < 0) { - syslog (LOG_ERR, "hddtemp: Could not connect to daemon."); + ERROR ("hddtemp plugin: Could not connect to daemon."); return (-1); } @@ -180,11 +169,13 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) { if (status == -1) { + char errbuf[1024]; + if ((errno == EAGAIN) || (errno == EINTR)) continue; - syslog (LOG_ERR, "hddtemp: Error reading from socket: %s", - strerror (errno)); + ERROR ("hddtemp plugin: Error reading from socket: %s", + sstrerror (errno, errbuf, sizeof (errbuf))); close (fd); return (-1); } @@ -197,12 +188,13 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) if (buffer_fill >= buffer_size) { buffer[buffer_size - 1] = '\0'; - syslog (LOG_WARNING, "hddtemp: Message from hddtemp has been truncated."); + WARNING ("hddtemp plugin: Message from hddtemp has been " + "truncated."); } else if (buffer_fill == 0) { - syslog (LOG_WARNING, "hddtemp: Peer has unexpectedly shut down the socket. " - "Buffer: `%s'", buffer); + WARNING ("hddtemp plugin: Peer has unexpectedly shut down " + "the socket. Buffer: `%s'", buffer); close (fd); return (-1); } @@ -211,19 +203,22 @@ static int hddtemp_query_daemon (char *buffer, int buffer_size) return (0); } -static int hddtemp_config (char *key, char *value) +static int hddtemp_config (const char *key, const char *value) { - if (strcasecmp (key, "host") == 0) + if (strcasecmp (key, "Host") == 0) { if (hddtemp_host != NULL) free (hddtemp_host); hddtemp_host = strdup (value); } - else if (strcasecmp (key, "port") == 0) + else if (strcasecmp (key, "Port") == 0) { - if (hddtemp_port != NULL) - free (hddtemp_port); - hddtemp_port = strdup (value); + int port = (int) (atof (value)); + if ((port > 0) && (port <= 65535)) + ssnprintf (hddtemp_port, sizeof (hddtemp_port), + "%i", port); + else + sstrncpy (hddtemp_port, value, sizeof (hddtemp_port)); } else { @@ -233,259 +228,42 @@ static int hddtemp_config (char *key, char *value) return (0); } -/* In the init-function we initialize the `hddname_t' list used to translate - * disk-names. Under Linux that's done using `/proc/partitions'. Under other - * operating-systems, it's not done at all. */ -static void hddtemp_init (void) +static void hddtemp_submit (char *type_instance, double value) { -#if KERNEL_LINUX - FILE *fh; - char buf[BUFFER_SIZE]; - int buflen; - - char *fields[16]; - int num_fields; - - int major; - int minor; - char *name; - hddname_t *next; - hddname_t *entry; - - next = first_hddname; - while (next != NULL) - { - entry = next; - next = entry->next; - - free (entry->name); - free (entry); - } - first_hddname = NULL; - - if ((fh = fopen ("/proc/partitions", "r")) != NULL) - { - DBG ("Looking at /proc/partitions..."); + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; - while (fgets (buf, BUFFER_SIZE, fh) != NULL) - { - /* Delete trailing newlines */ - buflen = strlen (buf); - - while ((buflen > 0) && ((buf[buflen-1] == '\n') || (buf[buflen-1] == '\r'))) - buf[--buflen] = '\0'; - - /* We want lines of the form: - * - * 3 1 77842926 hda1 - * - * ...so, skip everything else. */ - if (buflen == 0) - continue; - - num_fields = strsplit (buf, fields, 16); - - if (num_fields != 4) - continue; + values[0].gauge = value; - major = atoi (fields[0]); - minor = atoi (fields[1]); - - /* We try to keep only entries, which may correspond to - * physical disks and that may have a corresponding - * entry in the hddtemp daemon. Basically, this means - * IDE and SCSI. */ - switch (major) - { - /* SCSI. */ - case SCSI_DISK0_MAJOR: - case SCSI_DISK1_MAJOR: - case SCSI_DISK2_MAJOR: - case SCSI_DISK3_MAJOR: - case SCSI_DISK4_MAJOR: - case SCSI_DISK5_MAJOR: - case SCSI_DISK6_MAJOR: - case SCSI_DISK7_MAJOR: - case SCSI_DISK8_MAJOR: - case SCSI_DISK9_MAJOR: - case SCSI_DISK10_MAJOR: - case SCSI_DISK11_MAJOR: - case SCSI_DISK12_MAJOR: - case SCSI_DISK13_MAJOR: - case SCSI_DISK14_MAJOR: - case SCSI_DISK15_MAJOR: - /* SCSI disks minors are multiples of 16. - * Keep only those. */ - if (minor % 16) - continue; - break; - - /* IDE. */ - case IDE0_MAJOR: - case IDE1_MAJOR: - case IDE2_MAJOR: - case IDE3_MAJOR: - case IDE4_MAJOR: - case IDE5_MAJOR: - case IDE6_MAJOR: - case IDE7_MAJOR: - case IDE8_MAJOR: - case IDE9_MAJOR: - /* IDE disks minors can only be 0 or 64. - * Keep only those. */ - if(minor != 0 && minor != 64) - continue; - break; - - /* Skip all other majors. */ - default: - DBG ("Skipping unknown major %i", major); - continue; - } /* switch (major) */ - - if ((name = strdup (fields[3])) == NULL) - { - syslog (LOG_ERR, "hddtemp: strdup(%s) == NULL", fields[3]); - continue; - } + vl.values = values; + vl.values_len = 1; + sstrncpy (vl.host, hostname_g, sizeof (vl.host)); + sstrncpy (vl.plugin, "hddtemp", sizeof (vl.plugin)); + sstrncpy (vl.type, "temperature", sizeof (vl.type)); + sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance)); - if ((entry = (hddname_t *) malloc (sizeof (hddname_t))) == NULL) - { - syslog (LOG_ERR, "hddtemp: malloc (%u) == NULL", - (unsigned int) sizeof (hddname_t)); - free (name); - continue; - } - - DBG ("Found disk: %s (%u:%u).", name, major, minor); - - entry->major = major; - entry->minor = minor; - entry->name = name; - entry->next = NULL; - - if (first_hddname == NULL) - { - first_hddname = entry; - } - else - { - entry->next = first_hddname; - first_hddname = entry; - } - } - fclose (fh); - } - else - DBG ("Could not open /proc/partitions: %s", - strerror (errno)); -#endif /* KERNEL_LINUX */ + plugin_dispatch_values (&vl); } -static void hddtemp_write (char *host, char *inst, char *val) +static int hddtemp_read (void) { - char filename[BUFFER_SIZE]; - int status; - - /* construct filename */ - status = snprintf (filename, BUFFER_SIZE, filename_format, inst); - if (status < 1) - return; - else if (status >= BUFFER_SIZE) - return; - - rrd_update_file (host, filename, val, ds_def, ds_num); -} - -/* - * hddtemp_get_name - * - * Description: - * Try to "cook" a bit the drive name as returned - * by the hddtemp daemon. The intend is to transform disk - * names into - when possible. - */ -static char *hddtemp_get_name (char *drive) -{ - hddname_t *list; - char *ret; - - for (list = first_hddname; list != NULL; list = list->next) - if (strcmp (drive, list->name) == 0) - break; - - if (list == NULL) - { - DBG ("Don't know %s, keeping name as-is.", drive); - return (strdup (drive)); - } - - if ((ret = (char *) malloc (128 * sizeof (char))) == NULL) - return (NULL); - - if (snprintf (ret, 128, "%i-%i", list->major, list->minor) >= 128) - { - free (ret); - return (NULL); - } - - return (ret); -} - -static void hddtemp_submit (char *inst, double temperature) -{ - char buf[BUFFER_SIZE]; - - if (snprintf (buf, BUFFER_SIZE, "%u:%.3f", (unsigned int) curtime, temperature) - >= BUFFER_SIZE) - return; - - plugin_submit (MODULE_NAME, inst, buf); -} - -static void hddtemp_read (void) -{ - char buf[BUFFER_SIZE]; + char buf[1024]; char *fields[128]; char *ptr; + char *saveptr; int num_fields; int num_disks; int i; - static int wait_time = 1; - static int wait_left = 0; - - if (wait_left >= 10) - { - wait_left -= 10; - return; - } - /* get data from daemon */ - if (hddtemp_query_daemon (buf, BUFFER_SIZE) < 0) - { - /* This limit is reached in log2(86400) =~ 17 steps. Since - * there is a 2^n seconds wait between each step it will need - * roughly one day to reach this limit. -octo */ - - wait_time *= 2; - if (wait_time > 86400) - wait_time = 86400; - - wait_left = wait_time; - - return; - } - else - { - wait_time = 1; - wait_left = 0; - } + if (hddtemp_query_daemon (buf, sizeof (buf)) < 0) + return (-1); - /* NB: strtok will eat up "||" and leading "|"'s */ + /* NB: strtok_r will eat up "||" and leading "|"'s */ num_fields = 0; ptr = buf; - while ((fields[num_fields] = strtok (ptr, "|")) != NULL) + saveptr = NULL; + while ((fields[num_fields] = strtok_r (ptr, "|", &saveptr)) != NULL) { ptr = NULL; num_fields++; @@ -498,7 +276,7 @@ static void hddtemp_read (void) for (i = 0; i < num_disks; i++) { - char *name, *submit_name; + char *name; double temperature; char *mode; @@ -515,24 +293,17 @@ static void hddtemp_read (void) if (mode[0] == 'F') temperature = (temperature - 32.0) * 5.0 / 9.0; - if ((submit_name = hddtemp_get_name (name)) != NULL) - { - hddtemp_submit (submit_name, temperature); - free (submit_name); - } - else - { - hddtemp_submit (name, temperature); - } + hddtemp_submit (name, temperature); } -} + + return (0); +} /* int hddtemp_read */ /* module_register Register collectd plugin. */ void module_register (void) { - plugin_register (MODULE_NAME, hddtemp_init, hddtemp_read, hddtemp_write); - cf_register (MODULE_NAME, hddtemp_config, config_keys, config_keys_num); + plugin_register_config ("hddtemp", hddtemp_config, + config_keys, config_keys_num); + plugin_register_read ("hddtemp", hddtemp_read); } - -#undef MODULE_NAME