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authorDimitri Staessens <dimitri.staessens@ugent.be>2018-02-22 22:35:28 +0100
committerSander Vrijders <sander.vrijders@ugent.be>2018-02-23 11:30:49 +0100
commit2bd60346e7a010c0da4d093dc5a7684257fc4ede (patch)
tree806b84d870e008ae3d8179844b1dd67df44f93ba /src/ipcpd
parent130d640d4ba06c45cdd0b9d2787f0a19a3484c9d (diff)
downloadouroboros-2bd60346e7a010c0da4d093dc5a7684257fc4ede.tar.gz
ouroboros-2bd60346e7a010c0da4d093dc5a7684257fc4ede.zip
ipcpd: Fix locking issues in flow statistics
The locks were not initialised correctly due to a misspelled define and the fail_write was trying to lock a bad mutex (sometimes -1 out of array). This also fixes the statistics gathered. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Diffstat (limited to 'src/ipcpd')
-rw-r--r--src/ipcpd/normal/dt.c71
1 files changed, 59 insertions, 12 deletions
diff --git a/src/ipcpd/normal/dt.c b/src/ipcpd/normal/dt.c
index 2cfd7417..ebe8b01a 100644
--- a/src/ipcpd/normal/dt.c
+++ b/src/ipcpd/normal/dt.c
@@ -339,6 +339,8 @@ static void sdu_handler(int fd,
#ifdef IPCP_FLOW_STATS
pthread_mutex_lock(&dt.stat[fd].lock);
+ ++dt.stat[fd].rcv_pkt[qc];
+ dt.stat[fd].rcv_bytes[qc] += len;
++dt.stat[fd].r_drp_pkt[qc];
dt.stat[fd].r_drp_bytes[qc] += len;
@@ -408,7 +410,8 @@ static void sdu_handler(int fd,
ipcp_sdb_release(sdb);
#ifdef IPCP_FLOW_STATS
pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
-
+ ++dt.stat[fd].rcv_pkt[qc];
+ dt.stat[fd].rcv_bytes[qc] += len;
++dt.stat[dt_pci.eid].w_drp_pkt[qc];
dt.stat[dt_pci.eid].w_drp_bytes[qc] += len;
@@ -417,6 +420,12 @@ static void sdu_handler(int fd,
}
#ifdef IPCP_FLOW_STATS
+ pthread_mutex_lock(&dt.stat[fd].lock);
+
+ ++dt.stat[fd].rcv_pkt[qc];
+ dt.stat[fd].rcv_bytes[qc] += len;
+
+ pthread_mutex_unlock(&dt.stat[fd].lock);
pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
++dt.stat[dt_pci.eid].rcv_pkt[qc];
@@ -434,6 +443,12 @@ static void sdu_handler(int fd,
dt_pci.eid);
ipcp_sdb_release(sdb);
#ifdef IPCP_FLOW_STATS
+ pthread_mutex_lock(&dt.stat[fd].lock);
+
+ ++dt.stat[fd].rcv_pkt[qc];
+ dt.stat[fd].rcv_bytes[qc] += len;
+
+ pthread_mutex_unlock(&dt.stat[fd].lock);
pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
++dt.stat[dt_pci.eid].w_drp_pkt[qc];
@@ -444,13 +459,19 @@ static void sdu_handler(int fd,
return;
}
#ifdef IPCP_FLOW_STATS
- pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
+ pthread_mutex_lock(&dt.stat[fd].lock);
++dt.stat[fd].rcv_pkt[qc];
dt.stat[fd].rcv_bytes[qc] += len;
++dt.stat[fd].lcl_r_pkt[qc];
dt.stat[fd].lcl_r_bytes[qc] += len;
+ pthread_mutex_unlock(&dt.stat[fd].lock);
+ pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
+
+ ++dt.stat[dt_pci.eid].snd_pkt[qc];
+ dt.stat[dt_pci.eid].rcv_bytes[qc] += len;
+
pthread_mutex_unlock(&dt.stat[dt_pci.eid].lock);
#endif
dt.comps[dt_pci.eid].post_sdu(dt.comps[dt_pci.eid].comp, sdb);
@@ -542,11 +563,11 @@ int dt_init(enum pol_routing pr,
dt.res_fds = bmp_create(PROG_RES_FDS, 0);
if (dt.res_fds == NULL)
goto fail_res_fds;
-#ifdef IPCP_FLOW_STAT
+#ifdef IPCP_FLOW_STATS
memset(dt.stat, 0, sizeof(dt.stat));
- for (i = 0; i < PROG_MAX_FLOWS, ++i)
- if (pthread_mutex_init(&dt.stat[fd].lock, NULL)) {
+ for (i = 0; i < PROG_MAX_FLOWS; ++i)
+ if (pthread_mutex_init(&dt.stat[i].lock, NULL)) {
for (j = 0; j < i; ++j)
pthread_mutex_destroy(&dt.stat[j].lock);
goto fail_stat_lock;
@@ -560,7 +581,7 @@ int dt_init(enum pol_routing pr,
return 0;
fail_rib_reg:
-#ifdef IPCP_FLOW_STAT
+#ifdef IPCP_FLOW_STATS
for (i = 0; i < PROG_MAX_FLOWS; ++i)
pthread_mutex_destroy(&dt.stat[i].lock);
fail_stat_lock:
@@ -686,7 +707,17 @@ int dt_write_sdu(uint64_t dst_addr,
fd = pff_nhop(dt.pff[qc], dst_addr);
if (fd < 0) {
log_dbg("Could not get nhop for addr %" PRIu64 ".", dst_addr);
- goto fail_write;
+#ifdef IPCP_FLOW_STATS
+ pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
+
+ ++dt.stat[dt_pci.eid].lcl_r_pkt[qc];
+ dt.stat[dt_pci.eid].lcl_r_bytes[qc] += len;
+ ++dt.stat[dt_pci.eid].f_nhp_pkt[qc];
+ dt.stat[dt_pci.eid].f_nhp_bytes[qc] += len;
+
+ pthread_mutex_unlock(&dt.stat[dt_pci.eid].lock);
+#endif
+ return -1;
}
dt_pci.dst_addr = dst_addr;
@@ -706,12 +737,20 @@ int dt_write_sdu(uint64_t dst_addr,
goto fail_write;
}
#ifdef IPCP_FLOW_STATS
+ pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
+
+ ++dt.stat[dt_pci.eid].lcl_r_pkt[qc];
+ dt.stat[dt_pci.eid].lcl_r_bytes[qc] += len;
+
+ pthread_mutex_unlock(&dt.stat[dt_pci.eid].lock);
pthread_mutex_lock(&dt.stat[fd].lock);
- ++dt.stat[dt_pci.eid].lcl_w_pkt[qc];
- dt.stat[dt_pci.eid].lcl_w_bytes[qc] += len;
+ if (dt_pci.eid < PROG_RES_FDS) {
+ ++dt.stat[fd].lcl_w_pkt[qc];
+ dt.stat[fd].lcl_w_bytes[qc] += len;
+ }
++dt.stat[fd].snd_pkt[qc];
- dt.stat[fd].snd_bytes[qc] = len;
+ dt.stat[fd].snd_bytes[qc] += len;
pthread_mutex_unlock(&dt.stat[fd].lock);
#endif
@@ -719,12 +758,20 @@ int dt_write_sdu(uint64_t dst_addr,
fail_write:
#ifdef IPCP_FLOW_STATS
- pthread_mutex_lock(&dt.stat[fd].lock);
+ pthread_mutex_lock(&dt.stat[dt_pci.eid].lock);
++dt.stat[dt_pci.eid].lcl_w_pkt[qc];
dt.stat[dt_pci.eid].lcl_w_bytes[qc] += len;
+
+ pthread_mutex_unlock(&dt.stat[dt_pci.eid].lock);
+ pthread_mutex_lock(&dt.stat[fd].lock);
+
+ if (dt_pci.eid < PROG_RES_FDS) {
+ ++dt.stat[fd].lcl_w_pkt[qc];
+ dt.stat[fd].lcl_w_bytes[qc] += len;
+ }
++dt.stat[fd].w_drp_pkt[qc];
- dt.stat[fd].w_drp_bytes[qc] = len;
+ dt.stat[fd].w_drp_bytes[qc] += len;
pthread_mutex_unlock(&dt.stat[fd].lock);
#endif