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raw | patch | inline | side by side (parent: 149cce4)
raw | patch | inline | side by side (parent: 149cce4)
author | octo <octo> | |
Sun, 28 May 2006 15:53:59 +0000 (15:53 +0000) | ||
committer | octo <octo> | |
Sun, 28 May 2006 15:53:59 +0000 (15:53 +0000) |
src/ntpd.c | patch | blob | history |
diff --git a/src/ntpd.c b/src/ntpd.c
index eb871e14ee897575452128f1ea38e71f6b4f1eb7..fd2a0b274f2fcdfe083abc1e7f4b7ddb049e4838 100644 (file)
--- a/src/ntpd.c
+++ b/src/ntpd.c
#include "plugin.h"
#include "configfile.h"
-#include "ntp_request.h"
-
#define MODULE_NAME "ntpd"
#if HAVE_SYS_SOCKET_H
# define NTPD_HAVE_READ 0
#endif
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
#if HAVE_NETDB_H
# include <netdb.h>
#endif
static char *ntpd_port = NULL;
#endif
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * The following definitions were copied from the NTPd distribution *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+#define MAXFILENAME 128
+#define MAXSEQ 127
+#define MODE_PRIVATE 7
+#define NTP_OLDVERSION ((u_char) 1) /* oldest credible version */
+#define IMPL_XNTPD 3
+
+/* This structure is missing the message authentication code, since collectd
+ * doesn't use it. */
+struct req_pkt
+{
+ uint8_t rm_vn_mode;
+ uint8_t auth_seq;
+ uint8_t implementation; /* implementation number */
+ uint8_t request; /* request number */
+ uint16_t err_nitems; /* error code/number of data items */
+ uint16_t mbz_itemsize; /* item size */
+ char data[MAXFILENAME + 48]; /* data area [32 prev](176 byte max) */
+ /* struct conf_peer must fit */
+};
+#define REQ_LEN_NOMAC (sizeof(struct req_pkt))
+
+/*
+ * A response packet. The length here is variable, this is a
+ * maximally sized one. Note that this implementation doesn't
+ * authenticate responses.
+ */
+#define RESP_HEADER_SIZE (8)
+#define RESP_DATA_SIZE (500)
+
+struct resp_pkt
+{
+ uint8_t rm_vn_mode; /* response, more, version, mode */
+ uint8_t auth_seq; /* key, sequence number */
+ uint8_t implementation; /* implementation number */
+ uint8_t request; /* request number */
+ uint16_t err_nitems; /* error code/number of data items */
+ uint16_t mbz_itemsize; /* item size */
+ char data[RESP_DATA_SIZE]; /* data area */
+};
+
+/*
+ * Bit setting macros for multifield items.
+ */
+#define RESP_BIT 0x80
+#define MORE_BIT 0x40
+
+#define ISRESPONSE(rm_vn_mode) (((rm_vn_mode)&RESP_BIT)!=0)
+#define ISMORE(rm_vn_mode) (((rm_vn_mode)&MORE_BIT)!=0)
+#define INFO_VERSION(rm_vn_mode) ((u_char)(((rm_vn_mode)>>3)&0x7))
+#define INFO_MODE(rm_vn_mode) ((rm_vn_mode)&0x7)
+
+#define RM_VN_MODE(resp, more, version) \
+ ((u_char)(((resp)?RESP_BIT:0)\
+ |((more)?MORE_BIT:0)\
+ |((version?version:(NTP_OLDVERSION+1))<<3)\
+ |(MODE_PRIVATE)))
+
+#define INFO_IS_AUTH(auth_seq) (((auth_seq) & 0x80) != 0)
+#define INFO_SEQ(auth_seq) ((auth_seq)&0x7f)
+#define AUTH_SEQ(auth, seq) ((u_char)((((auth)!=0)?0x80:0)|((seq)&0x7f)))
+
+#define INFO_ERR(err_nitems) ((u_short)((ntohs(err_nitems)>>12)&0xf))
+#define INFO_NITEMS(err_nitems) ((u_short)(ntohs(err_nitems)&0xfff))
+#define ERR_NITEMS(err, nitems) (htons((u_short)((((u_short)(err)<<12)&0xf000)\
+ |((u_short)(nitems)&0xfff))))
+
+#define INFO_MBZ(mbz_itemsize) ((ntohs(mbz_itemsize)>>12)&0xf)
+#define INFO_ITEMSIZE(mbz_itemsize) ((u_short)(ntohs(mbz_itemsize)&0xfff))
+#define MBZ_ITEMSIZE(itemsize) (htons((u_short)(itemsize)))
+
static void ntpd_init (void)
{
return;
static void ntpd_write (char *host, char *inst, char *val)
{
- rrd_update_file (host, ntpd_file, val, ds_def, ds_num);
+ rrd_update_file (host, time_offset_file, val,
+ time_offset_ds_def, time_offset_ds_num); /* FIXME filename incorrect */
}
#if NTPD_HAVE_READ
plugin_submit (MODULE_NAME, "-", buf);
}
-static void ntpd_connect (void)
+static int ntpd_connect (void)
{
char *host;
char *port;
struct resp_pkt res;
ssize_t status;
int done;
+ int i;
char *items;
size_t items_num;
}
/* Check for error code */
- if (INFO_ERR (res.err_nitems) != INFO_OKAY)
+ if (INFO_ERR (res.err_nitems) != 0)
{
syslog (LOG_ERR, "ntpd plugin: Received error code %i",
(int) INFO_ERR(res.err_nitems));
@@ -377,13 +453,13 @@ static int ntpd_send_request (int req_code, int req_items, int req_size, char *r
assert (((req_data != NULL) && (req_data_len > 0))
|| ((req_data == NULL) && (req_items == 0) && (req_size == 0)));
- req.err_nitems = ERR_NITEMS (0, qitems);
- req.mbz_itemsize = MBZ_ITEMSIZE (qsize);
+ req.err_nitems = ERR_NITEMS (0, req_items);
+ req.mbz_itemsize = MBZ_ITEMSIZE (req_size);
if (req_data != NULL)
memcpy ((void *) req.data, (const void *) req_data, req_data_len);
- status = swrite (fd, (const char *) &req, REQ_LEN_NOMAC);
+ status = swrite (sd, (const char *) &req, REQ_LEN_NOMAC);
if (status < 0)
return (status);
@@ -420,16 +496,7 @@ static int ntpd_do_query (int req_code, int req_items, int req_size, char *req_d
static void ntpd_read (void)
{
- static sd = -1;
- struct req_pkt req;
-
- ntpd_connect (&sd);
- if (sd < 0)
- return;
-
- memset ((void *) &req, '\0', sizeof (req));
- req.rm_vn_mode = RM_VN_MODE (0, 0, 0); /* response, more, version, mode */
- req.implementation = IMPL_XNTPD;
+ return;
}
#else
# define ntpd_read NULL