X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fntpd.c;h=366c24b485f61939c4646bf1755245e2f7349c47;hb=4dc48314be6a40b0d561d9dbf257c92f6197d15c;hp=a2b554ebb6bc0450eacd7e6c7d72165e0350ffd2;hpb=544e9462d34c57c2b33aa02d308bf99fa9977712;p=collectd.git diff --git a/src/ntpd.c b/src/ntpd.c index a2b554eb..366c24b4 100644 --- a/src/ntpd.c +++ b/src/ntpd.c @@ -1,6 +1,6 @@ /** * collectd - src/ntpd.c - * Copyright (C) 2006 Florian octo Forster + * Copyright (C) 2006-2007 Florian octo Forster * * 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 @@ -25,8 +25,6 @@ #include "configfile.h" #include "utils_debug.h" -#define MODULE_NAME "ntpd" - #if HAVE_SYS_SOCKET_H # define NTPD_HAVE_READ 1 #else @@ -45,29 +43,53 @@ #if HAVE_NETINET_IN_H # include #endif +#if HAVE_ARPA_INET_H +# include /* inet_ntoa */ +#endif #if HAVE_NETINET_TCP_H # include #endif -#if HAVE_SYS_POLL_H -# include +#if HAVE_POLL_H +# include #endif -/* drift */ -static char *time_offset_file = "ntpd/time_offset-%s.rrd"; -static char *time_offset_ds_def[] = +static data_source_t seconds_dsrc[1] = { - "DS:ms:GAUGE:"COLLECTD_HEARTBEAT":0:100", - NULL + {"seconds", DS_TYPE_GAUGE, -1000000.0, 1000000.0} +}; + +static data_set_t time_offset_ds = +{ + "time_offset", 1, seconds_dsrc +}; + +static data_set_t time_dispersion_ds = +{ + "time_dispersion", 1, seconds_dsrc +}; + +static data_set_t delay_ds = +{ + "delay", 1, seconds_dsrc +}; + +static data_source_t ppm_dsrc[1] = +{ + {"ppm", DS_TYPE_GAUGE, -1000000.0, 1000000.0} }; -static int time_offset_ds_num = 1; -static char *frequency_offset_file = "ntpd/frequency_offset-%s.rrd"; -static char *frequency_offset_ds_def[] = +static data_set_t frequency_offset_ds = { - "DS:ppm:GAUGE:"COLLECTD_HEARTBEAT":0:100", + "frequency_offset", 1, ppm_dsrc +}; + +static const char *config_keys[] = +{ + "Host", + "Port", NULL }; -static int frequency_offset_ds_num = 1; +static int config_keys_num = 2; #if NTPD_HAVE_READ # define NTPD_DEFAULT_HOST "localhost" @@ -75,7 +97,6 @@ static int frequency_offset_ds_num = 1; static int sock_descr = -1; static char *ntpd_host = NULL; static char *ntpd_port = NULL; -#endif /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * The following definitions were copied from the NTPd distribution * @@ -87,6 +108,9 @@ static char *ntpd_port = NULL; #define IMPL_XNTPD 3 #define FP_FRAC 65536.0 +#define REFCLOCK_ADDR 0x7f7f0000 /* 127.127.0.0 */ +#define REFCLOCK_MASK 0xffff0000 /* 255.255.0.0 */ + /* This structure is missing the message authentication code, since collectd * doesn't use it. */ struct req_pkt @@ -151,6 +175,54 @@ struct resp_pkt #define INFO_ITEMSIZE(mbz_itemsize) ((u_short)(ntohs(mbz_itemsize)&0xfff)) #define MBZ_ITEMSIZE(itemsize) (htons((u_short)(itemsize))) +/* negate a long float type */ +#define M_NEG(v_i, v_f) \ + do { \ + if ((v_f) == 0) \ + (v_i) = -((uint32_t)(v_i)); \ + else { \ + (v_f) = -((uint32_t)(v_f)); \ + (v_i) = ~(v_i); \ + } \ + } while(0) +/* l_fp to double */ +#define M_LFPTOD(r_i, r_uf, d) \ + do { \ + register int32_t i; \ + register uint32_t f; \ + \ + i = (r_i); \ + f = (r_uf); \ + if (i < 0) { \ + M_NEG(i, f); \ + (d) = -((double) i + ((double) f) / 4294967296.0); \ + } else { \ + (d) = (double) i + ((double) f) / 4294967296.0; \ + } \ + } while (0) + +#define REQ_PEER_LIST_SUM 1 +struct info_peer_summary +{ + uint32_t dstadr; /* local address (zero for undetermined) */ + uint32_t srcadr; /* source address */ + uint16_t srcport; /* source port */ + uint8_t stratum; /* stratum of peer */ + int8_t hpoll; /* host polling interval */ + int8_t ppoll; /* peer polling interval */ + uint8_t reach; /* reachability register */ + uint8_t flags; /* flags, from above */ + uint8_t hmode; /* peer mode */ + int32_t delay; /* peer.estdelay; s_fp */ + int32_t offset_int; /* peer.estoffset; integral part */ + int32_t offset_frc; /* peer.estoffset; fractional part */ + uint32_t dispersion; /* peer.estdisp; u_fp */ + uint32_t v6_flag; /* is this v6 or not */ + uint32_t unused1; /* (unused) padding for dstadr6 */ + struct in6_addr dstadr6; /* local address (v6) */ + struct in6_addr srcadr6; /* source address (v6) */ +}; + #define REQ_SYS_INFO 4 struct info_sys { @@ -198,53 +270,68 @@ struct info_kernel int32_t errcnt; int32_t stbcnt; }; + +/* List of reference clock names */ +static char *refclock_names[] = +{ + "UNKNOWN", "LOCAL", "GPS_TRAK", "WWV_PST", /* 0- 3 */ + "SPECTRACOM", "TRUETIME", "IRIG_AUDIO", "CHU_AUDIO", /* 4- 7 */ + "GENERIC", "GPS_MX4200", "GPS_AS2201", "GPS_ARBITER", /* 8-11 */ + "IRIG_TPRO", "ATOM_LEITCH", "MSF_EES", "GPSTM_TRUE", /* 12-15 */ + "GPS_BANC", "GPS_DATUM", "ACTS_NIST", "WWV_HEATH", /* 16-19 */ + "GPS_NMEA", "GPS_VME", "PPS", "ACTS_PTB", /* 20-23 */ + "ACTS_USNO", "TRUETIME", "GPS_HP", "MSF_ARCRON", /* 24-27 */ + "SHM", "GPS_PALISADE", "GPS_ONCORE", "GPS_JUPITER", /* 28-31 */ + "CHRONOLOG", "DUMBCLOCK", "ULINK_M320", "PCF", /* 32-35 */ + "WWV_AUDIO", "GPS_FG", "HOPF_S", "HOPF_P", /* 36-39 */ + "JJY", "TT_IRIG", "GPS_ZYFER", "GPS_RIPENCC", /* 40-43 */ + "NEOCLK4X", NULL /* 44 */ +}; +static int refclock_names_num = 45; /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * End of the copied stuff.. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ -static void ntpd_init (void) +static int ntpd_config (const char *key, const char *value) { - return; -} - -static void ntpd_write_time_offset (char *host, char *inst, char *val) -{ - char buf[256]; - int status; - - status = snprintf (buf, 256, time_offset_file, inst); - if ((status < 1) || (status >= 256)) - return; - - rrd_update_file (host, buf, val, - time_offset_ds_def, time_offset_ds_num); -} - -static void ntpd_write_frequency_offset (char *host, char *inst, char *val) -{ - char buf[256]; - int status; - - status = snprintf (buf, 256, frequency_offset_file, inst); - if ((status < 1) || (status >= 256)) - return; + if (strcasecmp (key, "host") == 0) + { + if (ntpd_host != NULL) + free (ntpd_host); + if ((ntpd_host = strdup (value)) == NULL) + return (1); + } + else if (strcasecmp (key, "port") == 0) + { + if (ntpd_port != NULL) + free (ntpd_port); + if ((ntpd_port = strdup (value)) == NULL) + return (1); + } + else + { + return (-1); + } - rrd_update_file (host, buf, val, - frequency_offset_ds_def, frequency_offset_ds_num); + return (0); } -#if NTPD_HAVE_READ -static void ntpd_submit (char *type, char *inst, double value) +static void ntpd_submit (char *type, char *type_inst, double value) { - char buf[256]; + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; - if (snprintf (buf, 256, "%u:%.8f", (unsigned int) curtime, value) >= 256) - return; + values[0].gauge = value; - DBG ("type = %s; inst = %s; value = %s;", - type, inst, buf); + vl.values = values; + vl.values_len = 1; + vl.time = time (NULL); + strcpy (vl.host, hostname); + strcpy (vl.plugin, "ntpd"); + strcpy (vl.plugin_instance, ""); + strncpy (vl.type_instance, type_inst, sizeof (vl.type_instance)); - plugin_submit (type, inst, buf); + plugin_dispatch_values (type, &vl); } /* returns `tv0 - tv1' in milliseconds or 0 if `tv1 > tv0' */ @@ -437,6 +524,9 @@ static int ntpd_receive_response (int req_code, int *res_items, int *res_size, if (status < 0) { DBG ("recv(2) failed: %s", strerror (errno)); + DBG ("Closing socket #%i", sd); + close (sd); + sock_descr = sd = -1; return (-1); } @@ -568,6 +658,7 @@ static int ntpd_receive_response (int req_code, int *res_items, int *res_size, (items_num + pkt_item_num) * res_item_size); items = realloc ((void *) *res_data, (items_num + pkt_item_num) * res_item_size); + items_num += pkt_item_num; if (items == NULL) { items = *res_data; @@ -635,7 +726,12 @@ static int ntpd_send_request (int req_code, int req_items, int req_size, char *r status = swrite (sd, (const char *) &req, REQ_LEN_NOMAC); if (status < 0) + { + DBG ("`swrite' failed. Closing socket #%i", sd); + close (sd); + sock_descr = sd = -1; return (status); + } return (0); } @@ -678,12 +774,18 @@ static double ntpd_read_fp (int32_t val_int) return (val_double); } -static void ntpd_read (void) +static int ntpd_read (void) { struct info_kernel *ik; int ik_num; int ik_size; - int status; + + struct info_peer_summary *ps; + int ps_num; + int ps_size; + + int status; + int i; ik = NULL; ik_num = 0; @@ -697,13 +799,13 @@ static void ntpd_read (void) if (status != 0) { DBG ("ntpd_do_query failed with status %i", status); - return; + return (-1); } if ((ik == NULL) || (ik_num == 0) || (ik_size == 0)) { - DBG ("ntpd_do_query returned: is = %p; ik_num = %i; ik_size = %i;", + DBG ("ntpd_do_query returned: ik = %p; ik_num = %i; ik_size = %i;", (void *) ik, ik_num, ik_size); - return; + return (-1); } /* kerninfo -> estimated error */ @@ -716,22 +818,153 @@ static void ntpd_read (void) ntpd_read_fp (ik->freq), ntpd_read_fp (ik->esterror)); - ntpd_submit ("ntpd_frequency_offset", "loop", ntpd_read_fp (ik->freq)); + ntpd_submit ("frequency_offset", "loop", ntpd_read_fp (ik->freq)); + ntpd_submit ("time_offset", "loop", ntpd_read_fp (ik->offset)); + ntpd_submit ("time_offset", "error", ntpd_read_fp (ik->esterror)); free (ik); ik = NULL; - return; -} -#else -# define ntpd_read NULL + status = ntpd_do_query (REQ_PEER_LIST_SUM, + 0, 0, NULL, /* request data */ + &ps_num, &ps_size, (char **) ((void *) &ps), /* response data */ + sizeof (struct info_peer_summary)); + if (status != 0) + { + DBG ("ntpd_do_query failed with status %i", status); + return (-1); + } + if ((ps == NULL) || (ps_num == 0) || (ps_size == 0)) + { + DBG ("ntpd_do_query returned: ps = %p; ps_num = %i; ps_size = %i;", + (void *) ps, ps_num, ps_size); + return (-1); + } + + for (i = 0; i < ps_num; i++) + { + struct info_peer_summary *ptr; + double offset; + + char peername[NI_MAXHOST]; + int refclock_id; + + ptr = ps + i; + refclock_id = 0; + + /* + if (((ntohl (ptr->dstadr) & 0xFFFFFF00) == 0x7F000000) || (ptr->dstadr == 0)) + continue; + */ + + /* Convert the `long floating point' offset value to double */ + M_LFPTOD (ntohl (ptr->offset_int), ntohl (ptr->offset_frc), offset); + + if (ptr->v6_flag) + { + struct sockaddr_in6 sa; + + memset (&sa, 0, sizeof (sa)); + sa.sin6_family = AF_INET6; + sa.sin6_port = htons (123); + memcpy (&sa.sin6_addr, &ptr->srcadr6, sizeof (struct in6_addr)); + + status = getnameinfo ((const struct sockaddr *) &sa, + sizeof (sa), + peername, sizeof (peername), + NULL, 0, 0 /* no flags */); + if (status != 0) + { + syslog (LOG_ERR, "ntpd plugin: getnameinfo failed: %s", + status == EAI_SYSTEM + ? strerror (errno) + : gai_strerror (status)); + continue; + } + } + else if ((ntohl (ptr->srcadr) & REFCLOCK_MASK) == REFCLOCK_ADDR) + { + struct in_addr addr_obj; + char *addr_str; + + refclock_id = (ntohl (ptr->srcadr) >> 8) & 0x000000FF; + + if (refclock_id < refclock_names_num) + { + strncpy (peername, refclock_names[refclock_id], + sizeof (peername)); + } + else + { + memset ((void *) &addr_obj, '\0', sizeof (addr_obj)); + addr_obj.s_addr = ptr->srcadr; + addr_str = inet_ntoa (addr_obj); + + strncpy (peername, addr_str, sizeof (peername)); + } + } + else /* IPv4 */ + { + struct in_addr addr_obj; + struct hostent *addr_he; + char *addr_str; + + memset ((void *) &addr_obj, '\0', sizeof (addr_obj)); + addr_obj.s_addr = ptr->srcadr; + addr_str = inet_ntoa (addr_obj); + + addr_he = gethostbyaddr ((const void *) &addr_obj, + sizeof (addr_obj), AF_INET); + if (addr_he != NULL) + { + strncpy (peername, addr_he->h_name, sizeof (peername)); + } + else + { + strncpy (peername, addr_str, sizeof (peername)); + } + } + + DBG ("peer %i:\n" + " peername = %s\n" + " srcadr = 0x%08x\n" + " delay = %f\n" + " offset_int = %i\n" + " offset_frc = %i\n" + " offset = %f\n" + " dispersion = %f\n", + i, + peername, + ntohl (ptr->srcadr), + ntpd_read_fp (ptr->delay), + ntohl (ptr->offset_int), + ntohl (ptr->offset_frc), + offset, + ntpd_read_fp (ptr->dispersion)); + + if (refclock_id != 1) /* not the system clock (offset will always be zero.. */ + ntpd_submit ("time_offset", peername, offset); + ntpd_submit ("time_dispersion", peername, ntpd_read_fp (ptr->dispersion)); + if (refclock_id == 0) /* not a reference clock */ + ntpd_submit ("delay", peername, ntpd_read_fp (ptr->delay)); + } + + free (ps); + ps = NULL; + + return (0); +} /* int ntpd_read */ #endif /* NTPD_HAVE_READ */ void module_register (void) { - plugin_register (MODULE_NAME, ntpd_init, ntpd_read, NULL); - plugin_register ("ntpd_time_offset", NULL, NULL, ntpd_write_time_offset); - plugin_register ("ntpd_frequency_offset", NULL, NULL, ntpd_write_frequency_offset); -} + plugin_register_data_set (&time_offset_ds); + plugin_register_data_set (&time_dispersion_ds); + plugin_register_data_set (&delay_ds); + plugin_register_data_set (&frequency_offset_ds); -#undef MODULE_NAME +#if NTPD_HAVE_READ + plugin_register_config ("ntpd", ntpd_config, config_keys, config_keys_num); + plugin_register_read ("ntpd", ntpd_read); +#endif /* NTPD_HAVE_READ */ +}