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authorRainer Gerhards <rgerhards@adiscon.com>2011-06-27 12:33:26 +0200
committerRainer Gerhards <rgerhards@adiscon.com>2011-06-27 12:33:26 +0200
commit8488d8c3c1e65cb4dacb1dddc71c9186ec9f8f37 (patch)
tree9f612b2808a1590e48cd0f43cb85efca3bb6f83f /plugins/imuxsock
parent2bd4e10a4dc909346d5a010edefb12c65ed77aec (diff)
parent47729f3b9362f7956c936088ac4bb703633cb33b (diff)
downloadrsyslog-8488d8c3c1e65cb4dacb1dddc71c9186ec9f8f37.tar.gz
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Merge branch 'v5-devel'
Conflicts: ChangeLog configure.ac doc/manual.html plugins/imfile/imfile.c plugins/imklog/imklog.c plugins/imptcp/imptcp.c plugins/imtcp/imtcp.c plugins/imuxsock/imuxsock.c plugins/mmsnmptrapd/mmsnmptrapd.c tools/omfile.c
Diffstat (limited to 'plugins/imuxsock')
-rw-r--r--plugins/imuxsock/imuxsock.c85
1 files changed, 70 insertions, 15 deletions
diff --git a/plugins/imuxsock/imuxsock.c b/plugins/imuxsock/imuxsock.c
index 64477620..4eafe92a 100644
--- a/plugins/imuxsock/imuxsock.c
+++ b/plugins/imuxsock/imuxsock.c
@@ -140,6 +140,7 @@ typedef struct lstn_s {
sbool bCreatePath; /* auto-creation of socket directory? */
sbool bUseCreds; /* pull original creator credentials from socket */
sbool bWritePid; /* write original PID into tag */
+ sbool bUseSysTimeStamp; /* use timestamp from system (instead of from message) */
} lstn_t;
static lstn_t listeners[MAXFUNIX];
@@ -163,6 +164,8 @@ static struct configSettings_s {
uchar *pLogHostName; /* host name to use with this socket */
int bUseFlowCtl; /* use flow control or not (if yes, only LIGHT is used! */
int bIgnoreTimestamp; /* ignore timestamps present in the incoming message? */
+ int bUseSysTimeStamp; /* use timestamp from system (rather than from message) */
+ int bUseSysTimeStampSysSock; /* same, for system log socket */
int bWritePid; /* use credentials from recvmsg() and fixup PID in TAG */
int bWritePidSysSock; /* use credentials from recvmsg() and fixup PID in TAG */
int bCreatePath; /* auto-create socket path? */
@@ -177,9 +180,10 @@ static struct configSettings_s {
struct instanceConf_s {
uchar *sockName;
uchar *pLogHostName; /* host name to use with this socket */
- int bUseFlowCtl; /* use flow control or not (if yes, only LIGHT is used! */
- int bIgnoreTimestamp; /* ignore timestamps present in the incoming message? */
- int bWritePid; /* use credentials from recvmsg() and fixup PID in TAG */
+ sbool bUseFlowCtl; /* use flow control or not (if yes, only LIGHT is used! */
+ sbool bIgnoreTimestamp; /* ignore timestamps present in the incoming message? */
+ sbool bWritePid; /* use credentials from recvmsg() and fixup PID in TAG */
+ sbool bUseSysTimeStamp; /* use timestamp from system (instead of from message) */
int bCreatePath; /* auto-create socket path? */
int ratelimitInterval; /* interval in seconds, 0 = off */
int ratelimitBurst; /* max nbr of messages in interval */
@@ -191,11 +195,12 @@ struct modConfData_s {
rsconf_t *pConf; /* our overall config object */
instanceConf_t *root, *tail;
uchar *pLogSockName;
- int bOmitLocalLogging;
- int bWritePidSysSock;
int ratelimitIntervalSysSock;
int ratelimitBurstSysSock;
int ratelimitSeveritySysSock;
+ sbool bOmitLocalLogging;
+ sbool bWritePidSysSock;
+ sbool bUseSysTimeStamp;
};
static modConfData_t *loadModConf = NULL;/* modConf ptr to use for the current load process */
static modConfData_t *runModConf = NULL;/* modConf ptr to use for the current load process */
@@ -317,6 +322,7 @@ static rsRetVal addInstance(void __attribute__((unused)) *pVal, uchar *pNewVal)
inst->bUseFlowCtl = cs.bUseFlowCtl;
inst->bIgnoreTimestamp = cs.bIgnoreTimestamp;
inst->bCreatePath = cs.bCreatePath;
+ inst->bUseSysTimeStamp = cs.bUseSysTimeStamp;
inst->bWritePid = cs.bWritePid;
inst->next = NULL;
@@ -381,6 +387,7 @@ addListner(instanceConf_t *inst)
listeners[nfd].sockName = ustrdup(inst->sockName);
listeners[nfd].bUseCreds = (inst->bWritePid || inst->ratelimitInterval) ? 1 : 0;
listeners[nfd].bWritePid = inst->bWritePid;
+ listeners[nfd].bUseSysTimeStamp = inst->bUseSysTimeStamp;
nfd++;
} else {
errmsg.LogError(0, NO_ERRCODE, "Out of unix socket name descriptors, ignoring %s\n",
@@ -494,6 +501,10 @@ openLogSocket(lstn_t *pLstn)
errmsg.LogError(errno, NO_ERRCODE, "set SCM_CREDENTIALS failed on '%s'", pLstn->sockName);
pLstn->bUseCreds = 0;
}
+// TODO: move to its own #if
+ if(setsockopt(pLstn->fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)) != 0) {
+ errmsg.LogError(errno, NO_ERRCODE, "set SO_TIMESTAMP failed on '%s'", pLstn->sockName);
+ }
}
# else /* HAVE_SCM_CREDENTIALS */
pLstn->bUseCreds = 0;
@@ -584,7 +595,7 @@ fixPID(uchar *bufTAG, int *lenTag, struct ucred *cred)
* can also mangle it if necessary.
*/
static inline rsRetVal
-SubmitMsg(uchar *pRcv, int lenRcv, lstn_t *pLstn, struct ucred *cred)
+SubmitMsg(uchar *pRcv, int lenRcv, lstn_t *pLstn, struct ucred *cred, struct timeval *ts)
{
msg_t *pMsg;
int lenMsg;
@@ -623,7 +634,13 @@ SubmitMsg(uchar *pRcv, int lenRcv, lstn_t *pLstn, struct ucred *cred)
findRatelimiter(pLstn, cred, &ratelimiter); /* ignore error, better so than others... */
}
- datetime.getCurrTime(&st, &tt);
+ if(ts == NULL) {
+ datetime.getCurrTime(&st, &tt);
+ } else {
+ datetime.timeval2syslogTime(ts, &st);
+ tt = ts->tv_sec;
+ }
+
if(ratelimiter != NULL && !withinRatelimit(ratelimiter, tt, cred->pid)) {
STATSCOUNTER_INC(ctrLostRatelimit, mutCtrLostRatelimit);
FINALIZE;
@@ -643,8 +660,26 @@ SubmitMsg(uchar *pRcv, int lenRcv, lstn_t *pLstn, struct ucred *cred)
parse++; lenMsg--; /* '>' */
- if(datetime.ParseTIMESTAMP3164(&(pMsg->tTIMESTAMP), &parse, &lenMsg) != RS_RET_OK) {
- DBGPRINTF("we have a problem, invalid timestamp in msg!\n");
+ if(ts == NULL) {
+ if(datetime.ParseTIMESTAMP3164(&(pMsg->tTIMESTAMP), &parse, &lenMsg) != RS_RET_OK) {
+ DBGPRINTF("we have a problem, invalid timestamp in msg!\n");
+ }
+ } else { /* if we pulled the time from the system, we need to update the message text */
+ if(lenMsg >= 16) {
+ /* RFC3164 timestamp is 16 bytes long, so assuming a valid stamp,
+ * we can fixup the message. If the part is smaller, the stamp can
+ * not be valid and we do not touch the message. Note that there may
+ * be some scenarios where the message is larg enough but the stamp is
+ * still invalid. In those cases we will destruct part of the message,
+ * but this case is considered extremely unlikely and thus not handled
+ * specifically. -- rgerhards, 2011-06-20
+ */
+ datetime.formatTimestamp3164(&st, (char*)parse, 0);
+ parse[15] = ' '; /* re-write \0 from fromatTimestamp3164 by SP */
+ /* update "counters" to reflect processed timestamp */
+ parse += 16;
+ lenMsg -= 16;
+ }
}
/* pull tag */
@@ -695,6 +730,7 @@ static rsRetVal readSocket(lstn_t *pLstn)
struct cmsghdr *cm;
# endif
struct ucred *cred;
+ struct timeval *ts;
uchar bufRcv[4096+1];
char aux[128];
uchar *pRcv = NULL; /* receive buffer */
@@ -733,21 +769,32 @@ static rsRetVal readSocket(lstn_t *pLstn)
dbgprintf("Message from UNIX socket: #%d\n", pLstn->fd);
if(iRcvd > 0) {
cred = NULL;
-# if HAVE_SCM_CREDENTIALS
- if(pLstn->bUseCreds) {
+ ts = NULL;
+ if(pLstn->bUseCreds || pLstn->bUseSysTimeStamp) {
dbgprintf("XXX: pre CM loop, length of control message %d\n", (int) msgh.msg_controllen);
- for (cm = CMSG_FIRSTHDR(&msgh); cm; cm = CMSG_NXTHDR(&msgh, cm)) {
+ for(cm = CMSG_FIRSTHDR(&msgh); cm; cm = CMSG_NXTHDR(&msgh, cm)) {
dbgprintf("XXX: in CM loop, %d, %d\n", cm->cmsg_level, cm->cmsg_type);
- if (cm->cmsg_level == SOL_SOCKET && cm->cmsg_type == SCM_CREDENTIALS) {
+# if HAVE_SCM_CREDENTIALS
+ if( pLstn->bUseCreds
+ && cm->cmsg_level == SOL_SOCKET && cm->cmsg_type == SCM_CREDENTIALS) {
cred = (struct ucred*) CMSG_DATA(cm);
dbgprintf("XXX: got credentials pid %d\n", (int) cred->pid);
break;
}
+# endif /* HAVE_SCM_CREDENTIALS */
+# if HAVE_SO_TIMESTAMP
+ if( pLstn->bUseSysTimeStamp
+ && cm->cmsg_level == SOL_SOCKET && cm->cmsg_type == SO_TIMESTAMP) {
+ ts = (struct timeval *)CMSG_DATA(cm);
+ dbgprintf("XXX: got timestamp %ld.%ld\n",
+ (long) ts->tv_sec, (long) ts->tv_usec);
+ break;
+ }
+# endif /* HAVE_SO_TIMESTAMP */
}
dbgprintf("XXX: post CM loop\n");
}
-# endif /* HAVE_SCM_CREDENTIALS */
- CHKiRet(SubmitMsg(pRcv, iRcvd, pLstn, cred));
+ CHKiRet(SubmitMsg(pRcv, iRcvd, pLstn, cred, ts));
} else if(iRcvd < 0 && errno != EINTR) {
char errStr[1024];
rs_strerror_r(errno, errStr, sizeof(errStr));
@@ -797,6 +844,7 @@ activateListeners()
listeners[0].ratelimitSev = runModConf->ratelimitSeveritySysSock;
listeners[0].bUseCreds = (runModConf->bWritePidSysSock || runModConf->ratelimitIntervalSysSock) ? 1 : 0;
listeners[0].bWritePid = runModConf->bWritePidSysSock;
+ listeners[0].bUseSysTimeStamp = runModConf->bUseSysTimeStamp;
sd_fds = sd_listen_fds(0);
if(sd_fds < 0) {
@@ -1017,6 +1065,8 @@ static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __a
cs.pLogHostName = NULL;
cs.bIgnoreTimestamp = 1;
cs.bUseFlowCtl = 0;
+ cs.bUseSysTimeStamp = 1;
+ cs.bUseSysTimeStampSysSock = 1;
cs.bWritePid = 0;
cs.bWritePidSysSock = 0;
cs.bCreatePath = DFLT_bCreatePath;
@@ -1063,6 +1113,7 @@ CODEmodInit_QueryRegCFSLineHdlr
listeners[0].bParseHost = 0;
listeners[0].bUseCreds = 0;
listeners[0].bCreatePath = 0;
+ listeners[0].bUseSysTimeStamp = 1;
/* initialize socket names */
for(i = 1 ; i < MAXFUNIX ; ++i) {
@@ -1092,6 +1143,8 @@ CODEmodInit_QueryRegCFSLineHdlr
NULL, &cs.bUseFlowCtl, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputunixlistensocketcreatepath", 0, eCmdHdlrBinary,
NULL, &cs.bCreatePath, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
+ CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputunixlistensocketusesystimestamp", 0, eCmdHdlrBinary,
+ NULL, &cs.bUseSysTimeStamp, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"addunixlistensocket", 0, eCmdHdlrGetWord,
addInstance, NULL, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputunixlistensocketusepidfromsystem", 0, eCmdHdlrBinary,
@@ -1114,6 +1167,8 @@ CODEmodInit_QueryRegCFSLineHdlr
setSystemLogTimestampIgnore, NULL, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"systemlogsocketflowcontrol", 0, eCmdHdlrBinary,
setSystemLogFlowControl, NULL, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
+ CHKiRet(omsdRegCFSLineHdlr((uchar *)"systemlogusesystimestamp", 0, eCmdHdlrBinary,
+ NULL, &cs.bUseSysTimeStampSysSock, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"systemlogusepidfromsystem", 0, eCmdHdlrBinary,
NULL, &cs.bWritePidSysSock, STD_LOADABLE_MODULE_ID, eConfObjGlobal));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"systemlogratelimitinterval", 0, eCmdHdlrInt,