#define STEP_TIME 1
#define DB_PATH "/var/lib/luci-bwc"
-#define DB_FILE DB_PATH "/%s"
+#define DB_IF_FILE DB_PATH "/if/%s"
+#define DB_CN_FILE DB_PATH "/connections"
+#define DB_LD_FILE DB_PATH "/load"
-#define SCAN_PATTERN \
+#define IF_SCAN_PATTERN \
" %[^ :]:%" SCNu64 " %" SCNu64 \
" %*d %*d %*d %*d %*d %*d" \
" %" SCNu64 " %" SCNu64
+#define LD_SCAN_PATTERN \
+ "%f %f %f"
+
+
+struct file_map {
+ int fd;
+ int size;
+ char *mmap;
+};
struct traffic_entry {
uint64_t time;
uint64_t txp;
};
+struct conn_entry {
+ uint64_t time;
+ uint32_t udp;
+ uint32_t tcp;
+ uint32_t other;
+};
+
+struct load_entry {
+ uint64_t time;
+ uint16_t load1;
+ uint16_t load5;
+ uint16_t load15;
+};
+
+
static uint64_t htonll(uint64_t value)
{
int num = 1;
#define ntohll htonll
-static int init_minutely(const char *ifname)
+static int init_directory(char *path)
{
- int i, file;
- char path[1024];
- char *p;
- struct traffic_entry e = { 0 };
-
- snprintf(path, sizeof(path), DB_FILE, ifname);
+ char *p = path;
for (p = &path[1]; *p; p++)
{
}
}
+ return 0;
+}
+
+static int init_file(char *path, int esize)
+{
+ int i, file;
+ char buf[sizeof(struct traffic_entry)] = { 0 };
+
+ if (init_directory(path))
+ return -1;
+
if ((file = open(path, O_WRONLY | O_CREAT, 0600)) >= 0)
{
for (i = 0; i < STEP_COUNT; i++)
{
- if (write(file, &e, sizeof(struct traffic_entry)) < 0)
+ if (write(file, buf, esize) < 0)
break;
}
return -1;
}
-static int update_minutely(
- const char *ifname, uint64_t rxb, uint64_t rxp, uint64_t txb, uint64_t txp
-) {
+static int update_file(const char *path, void *entry, int esize)
+{
int rv = -1;
-
int file;
- int entrysize = sizeof(struct traffic_entry);
- int mapsize = STEP_COUNT * entrysize;
+ char *map;
+
+ if ((file = open(path, O_RDWR)) >= 0)
+ {
+ map = mmap(NULL, esize * STEP_COUNT, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_LOCKED, file, 0);
+
+ if ((map != NULL) && (map != MAP_FAILED))
+ {
+ memmove(map, map + esize, esize * (STEP_COUNT-1));
+ memcpy(map + esize * (STEP_COUNT-1), entry, esize);
+
+ munmap(map, esize * STEP_COUNT);
+
+ rv = 0;
+ }
+
+ close(file);
+ }
+
+ return rv;
+}
+static int mmap_file(const char *path, int esize, struct file_map *m)
+{
+ m->fd = -1;
+ m->size = -1;
+ m->mmap = NULL;
+
+ if ((m->fd = open(path, O_RDONLY)) >= 0)
+ {
+ m->size = STEP_COUNT * esize;
+ m->mmap = mmap(NULL, m->size, PROT_READ,
+ MAP_SHARED | MAP_LOCKED, m->fd, 0);
+
+ if ((m->mmap != NULL) && (m->mmap != MAP_FAILED))
+ return 0;
+ }
+
+ return -1;
+}
+
+static void umap_file(struct file_map *m)
+{
+ if ((m->mmap != NULL) && (m->mmap != MAP_FAILED))
+ munmap(m->mmap, m->size);
+
+ if (m->fd > -1)
+ close(m->fd);
+}
+
+
+static int update_ifstat(
+ const char *ifname, uint64_t rxb, uint64_t rxp, uint64_t txb, uint64_t txp
+) {
char path[1024];
- char *map;
struct stat s;
struct traffic_entry e;
- snprintf(path, sizeof(path), DB_FILE, ifname);
+ snprintf(path, sizeof(path), DB_IF_FILE, ifname);
if (stat(path, &s))
{
- if (init_minutely(ifname))
+ if (init_file(path, sizeof(struct traffic_entry)))
{
fprintf(stderr, "Failed to init %s: %s\n",
path, strerror(errno));
- return rv;
+ return -1;
}
}
- if ((file = open(path, O_RDWR)) >= 0)
- {
- map = mmap(NULL, mapsize, PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_LOCKED, file, 0);
+ e.time = htonll(time(NULL));
+ e.rxb = htonll(rxb);
+ e.rxp = htonll(rxp);
+ e.txb = htonll(txb);
+ e.txp = htonll(txp);
- if ((map != NULL) && (map != MAP_FAILED))
- {
- e.time = htonll(time(NULL));
- e.rxb = htonll(rxb);
- e.rxp = htonll(rxp);
- e.txb = htonll(txb);
- e.txp = htonll(txp);
+ return update_file(path, &e, sizeof(struct traffic_entry));
+}
+
+static int update_cnstat(uint32_t udp, uint32_t tcp, uint32_t other)
+{
+ char path[1024];
- memmove(map, map + entrysize, mapsize - entrysize);
- memcpy(map + mapsize - entrysize, &e, entrysize);
+ struct stat s;
+ struct conn_entry e;
- munmap(map, mapsize);
+ snprintf(path, sizeof(path), DB_CN_FILE);
- rv = 0;
+ if (stat(path, &s))
+ {
+ if (init_file(path, sizeof(struct conn_entry)))
+ {
+ fprintf(stderr, "Failed to init %s: %s\n",
+ path, strerror(errno));
+
+ return -1;
}
+ }
- close(file);
+ e.time = htonll(time(NULL));
+ e.udp = htonl(udp);
+ e.tcp = htonl(tcp);
+ e.other = htonl(other);
+
+ return update_file(path, &e, sizeof(struct conn_entry));
+}
+
+static int update_ldstat(uint16_t load1, uint16_t load5, uint16_t load15)
+{
+ char path[1024];
+
+ struct stat s;
+ struct load_entry e;
+
+ snprintf(path, sizeof(path), DB_LD_FILE);
+
+ if (stat(path, &s))
+ {
+ if (init_file(path, sizeof(struct load_entry)))
+ {
+ fprintf(stderr, "Failed to init %s: %s\n",
+ path, strerror(errno));
+
+ return -1;
+ }
}
- return rv;
+ e.time = htonll(time(NULL));
+ e.load1 = htons(load1);
+ e.load5 = htons(load5);
+ e.load15 = htons(load15);
+
+ return update_file(path, &e, sizeof(struct load_entry));
}
static int run_daemon(int nofork)
{
FILE *info;
uint64_t rxb, txb, rxp, txp;
+ uint32_t udp, tcp, other;
+ float lf1, lf5, lf15;
char line[1024];
char ifname[16];
+ struct stat s;
+ const char *ipc = stat("/proc/net/nf_conntrack", &s)
+ ? "/proc/net/ip_conntrack" : "/proc/net/nf_conntrack";
if (!nofork)
{
if (strchr(line, '|'))
continue;
- if (sscanf(line, SCAN_PATTERN, ifname, &rxb, &rxp, &txb, &txp))
+ if (sscanf(line, IF_SCAN_PATTERN, ifname, &rxb, &rxp, &txb, &txp))
{
if (strncmp(ifname, "lo", sizeof(ifname)))
- update_minutely(ifname, rxb, rxp, txb, txp);
+ update_ifstat(ifname, rxb, rxp, txb, txp);
}
}
fclose(info);
}
+ if ((info = fopen(ipc, "r")) != NULL)
+ {
+ udp = 0;
+ tcp = 0;
+ other = 0;
+
+ while (fgets(line, sizeof(line), info))
+ {
+ if (strstr(line, "TIME_WAIT"))
+ continue;
+
+ if (sscanf(line, "%*s %*d %s", ifname) || sscanf(line, "%s %*d", ifname))
+ {
+ if (!strcmp(ifname, "tcp"))
+ tcp++;
+ else if (!strcmp(ifname, "udp"))
+ udp++;
+ else
+ other++;
+ }
+ }
+
+ update_cnstat(udp, tcp, other);
+
+ fclose(info);
+ }
+
+ if ((info = fopen("/proc/loadavg", "r")) != NULL)
+ {
+ if (fscanf(info, LD_SCAN_PATTERN, &lf1, &lf5, &lf15))
+ {
+ update_ldstat((uint16_t)(lf1 * 100),
+ (uint16_t)(lf5 * 100),
+ (uint16_t)(lf15 * 100));
+ }
+
+ fclose(info);
+ }
+
sleep(STEP_TIME);
}
}
-static int run_dump(const char *ifname)
+static int run_dump_ifname(const char *ifname)
{
- int rv = 1;
+ int i;
+ char path[1024];
+ struct file_map m;
+ struct traffic_entry *e;
- int i, file;
- int entrysize = sizeof(struct traffic_entry);
- int mapsize = STEP_COUNT * entrysize;
+ snprintf(path, sizeof(path), DB_IF_FILE, ifname);
+
+ if (mmap_file(path, sizeof(struct traffic_entry), &m))
+ {
+ fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+ return 1;
+ }
+
+ for (i = 0; i < m.size; i += sizeof(struct traffic_entry))
+ {
+ e = (struct traffic_entry *) &m.mmap[i];
+
+ if (!e->time)
+ continue;
+
+ printf("[ %" PRIu64 ", %" PRIu64 ", %" PRIu64
+ ", %" PRIu64 ", %" PRIu64 " ]%s\n",
+ ntohll(e->time),
+ ntohll(e->rxb), ntohll(e->rxp),
+ ntohll(e->txb), ntohll(e->txp),
+ ((i + sizeof(struct traffic_entry)) < m.size) ? "," : "");
+ }
+ umap_file(&m);
+
+ return 0;
+}
+
+static int run_dump_conns(void)
+{
+ int i;
char path[1024];
- char *map;
+ struct file_map m;
+ struct conn_entry *e;
- struct traffic_entry *e;
+ snprintf(path, sizeof(path), DB_CN_FILE);
- snprintf(path, sizeof(path), DB_FILE, ifname);
+ if (mmap_file(path, sizeof(struct conn_entry), &m))
+ {
+ fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+ return 1;
+ }
- if ((file = open(path, O_RDONLY)) >= 0)
+ for (i = 0; i < m.size; i += sizeof(struct conn_entry))
{
- map = mmap(NULL, mapsize, PROT_READ, MAP_SHARED | MAP_LOCKED, file, 0);
+ e = (struct conn_entry *) &m.mmap[i];
- if ((map != NULL) && (map != MAP_FAILED))
- {
- for (i = 0; i < mapsize; i += entrysize)
- {
- e = (struct traffic_entry *) &map[i];
+ if (!e->time)
+ continue;
- if (!e->time)
- continue;
+ printf("[ %" PRIu64 ", %u, %u, %u ]%s\n",
+ ntohll(e->time), ntohl(e->udp),
+ ntohl(e->tcp), ntohl(e->other),
+ ((i + sizeof(struct conn_entry)) < m.size) ? "," : "");
+ }
- printf("[ %" PRIu64 ", %" PRIu64 ", %" PRIu64
- ", %" PRIu64 ", %" PRIu64 " ]%s\n",
- ntohll(e->time),
- ntohll(e->rxb), ntohll(e->rxp),
- ntohll(e->txb), ntohll(e->txp),
- ((i + entrysize) < mapsize) ? "," : "");
- }
+ umap_file(&m);
- munmap(map, mapsize);
- rv = 0;
- }
+ return 0;
+}
- close(file);
- }
- else
+static int run_dump_load(void)
+{
+ int i;
+ char path[1024];
+ struct file_map m;
+ struct load_entry *e;
+
+ snprintf(path, sizeof(path), DB_LD_FILE);
+
+ if (mmap_file(path, sizeof(struct load_entry), &m))
{
fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+ return 1;
}
- return rv;
+ for (i = 0; i < m.size; i += sizeof(struct load_entry))
+ {
+ e = (struct load_entry *) &m.mmap[i];
+
+ if (!e->time)
+ continue;
+
+ printf("[ %" PRIu64 ", %u, %u, %u ]%s\n",
+ ntohll(e->time),
+ ntohs(e->load1), ntohs(e->load5), ntohs(e->load15),
+ ((i + sizeof(struct load_entry)) < m.size) ? "," : "");
+ }
+
+ umap_file(&m);
+
+ return 0;
}
int opt;
int daemon = 0;
int nofork = 0;
- int dprint = 0;
- char *ifname = NULL;
- while ((opt = getopt(argc, argv, "dfp:")) > -1)
+ while ((opt = getopt(argc, argv, "dfi:cl")) > -1)
{
switch (opt)
{
nofork = 1;
break;
- case 'p':
- dprint = 1;
- ifname = optarg;
+ case 'i':
+ if (optarg)
+ return run_dump_ifname(optarg);
break;
+ case 'c':
+ return run_dump_conns();
+
+ case 'l':
+ return run_dump_load();
+
default:
break;
}
if (daemon)
return run_daemon(nofork);
- else if (dprint && ifname)
- return run_dump(ifname);
-
else
fprintf(stderr,
"Usage:\n"
" %s -d [-f]\n"
- " %s -p ifname\n",
- argv[0], argv[0]
+ " %s -i ifname\n"
+ " %s -c\n"
+ " %s -l\n",
+ argv[0], argv[0], argv[0], argv[0]
);
return 1;
projects / project / luci.git / blobdiff