]> rtime.felk.cvut.cz Git - lisovros/iproute2_canprio.git/blobdiff - tc/tc_util.c
Add reference to tc-codel(8) to the SEE ALSO section
[lisovros/iproute2_canprio.git] / tc / tc_util.c
index 7b52ea15b84604e2230c952e032f17943c156f48..926ed08bd4edc159c4cc93d15bf19b4583cecc0f 100644 (file)
 #include "utils.h"
 #include "tc_util.h"
 
+#ifndef LIBDIR
+#define LIBDIR "/usr/lib"
+#endif
+
+const char *get_tc_lib(void)
+{
+       const char *lib_dir;
+
+       lib_dir = getenv("TC_LIB_DIR");
+       if (!lib_dir)
+               lib_dir = LIBDIR "/tc/";
+
+       return lib_dir;
+}
+
 int get_qdisc_handle(__u32 *h, const char *str)
 {
        __u32 maj;
@@ -61,11 +76,15 @@ int get_tc_classid(__u32 *h, const char *str)
                        return -1;
        }
        if (*p == ':') {
+               if (maj >= (1<<16))
+                       return -1;
                maj <<= 16;
                str = p+1;
                min = strtoul(str, &p, 16);
                if (*p != 0)
                        return -1;
+               if (min >= (1<<16))
+                       return -1;
                maj |= min;
        } else if (*p != 0)
                return -1;
@@ -97,44 +116,55 @@ char * sprint_tc_classid(__u32 h, char *buf)
        return buf;
 }
 
-/*
- * NB: rates are scaled differently depending on bits or bytes.
- *     if bits are requested then k == 1000 
- *     for bytes k = 1024
- */
+/* See http://physics.nist.gov/cuu/Units/binary.html */
+static const struct rate_suffix {
+       const char *name;
+       double scale;
+} suffixes[] = {
+       { "bit",        1. },
+       { "Kibit",      1024. },
+       { "kbit",       1000. },
+       { "mibit",      1024.*1024. },
+       { "mbit",       1000000. },
+       { "gibit",      1024.*1024.*1024. },
+       { "gbit",       1000000000. },
+       { "tibit",      1024.*1024.*1024.*1024. },
+       { "tbit",       1000000000000. },
+       { "Bps",        8. },
+       { "KiBps",      8.*1024. },
+       { "KBps",       8000. },
+       { "MiBps",      8.*1024*1024. },
+       { "MBps",       8000000. },
+       { "GiBps",      8.*1024.*1024.*1024. },
+       { "GBps",       8000000000. },
+       { "TiBps",      8.*1024.*1024.*1024.*1024. },
+       { "TBps",       8000000000000. },
+       { NULL }
+};
+
+
 int get_rate(unsigned *rate, const char *str)
 {
        char *p;
        double bps = strtod(str, &p);
+       const struct rate_suffix *s;
 
        if (p == str)
                return -1;
 
-       if (*p == 0 || strcasecmp(p, "bit") == 0)
-               bps /= 8;
-       else if (strcasecmp(p, "kbit") == 0)
-               bps = (bps * 1000.) / 8;
-       else if (strcasecmp(p, "mbit") == 0)
-               bps = (bps * 1000000.)/8;
-       else if (strcasecmp(p, "gbit") == 0)
-               bps = (bps * 1000000000.)/8;
-       else if (strcasecmp(p, "kibit") == 0)
-               bps *= 1024 / 8;
-       else if (strcasecmp(p, "mibit") == 0)
-               bps *= 1024*1024/8;
-       else if (strcasecmp(p, "gibit") == 0)
-               bps *= 1024*1024*1024/8;
-       else if (strcasecmp(p, "kbps") == 0)
-               bps *= 1024;
-       else if (strcasecmp(p, "mbps") == 0)
-               bps *= 1024*1024;
-       else if (strcasecmp(p, "gbps") == 0)
-               bps *= 1024*1024*1024;
-       else if (strcasecmp(p, "bps") != 0)
-               return -1;
+       if (*p == '\0') {
+               *rate = bps / 8.;       /* assume bytes/sec */
+               return 0;
+       }
 
-       *rate = bps;
-       return 0;
+       for (s = suffixes; s->name; ++s) {
+               if (strcasecmp(s->name, p) == 0) {
+                       *rate = (bps * s->scale) / 8.;
+                       return 0;
+               }
+       }
+
+       return -1;
 }
 
 int get_rate_and_cell(unsigned *rate, int *cell_log, char *str)
@@ -166,28 +196,35 @@ int get_rate_and_cell(unsigned *rate, int *cell_log, char *str)
        return 0;
 }
 
-
-int print_rate(char *buf, int len, __u32 rate)
+void print_rate(char *buf, int len, __u32 rate)
 {
        double tmp = (double)rate*8;
+       extern int use_iec;
 
-       if (tmp >= 999999 && fabs(1000000.*rint(tmp/1000000.) - tmp) < 1000)
-               snprintf(buf, len, "%gmbit", rint(tmp/1000000.));
-       else if (tmp >= 990 && fabs(1000.*rint(tmp/1000.) - tmp) < 10)
-               snprintf(buf, len, "%gkbit", rint(tmp/1000.));
-       else
-               snprintf(buf, len, "%ubit", rate);
-       return 0;
+       if (use_iec) {
+               if (tmp >= 1000.0*1024.0*1024.0)
+                       snprintf(buf, len, "%.0fMibit", tmp/(1024.0*1024.0));
+               else if (tmp >= 1000.0*1024)
+                       snprintf(buf, len, "%.0fKibit", tmp/1024);
+               else
+                       snprintf(buf, len, "%.0fbit", tmp);
+       } else {
+               if (tmp >= 1000.0*1000000.0)
+                       snprintf(buf, len, "%.0fMbit", tmp/1000000.0);
+               else if (tmp >= 1000.0 * 1000.0)
+                       snprintf(buf, len, "%.0fKbit", tmp/1000.0);
+               else
+                       snprintf(buf, len, "%.0fbit",  tmp);
+       }
 }
 
 char * sprint_rate(__u32 rate, char *buf)
 {
-       if (print_rate(buf, SPRINT_BSIZE-1, rate))
-               strcpy(buf, "???");
+       print_rate(buf, SPRINT_BSIZE-1, rate);
        return buf;
 }
 
-int get_usecs(unsigned *usecs, const char *str)
+int get_time(unsigned *time, const char *str)
 {
        double t;
        char *p;
@@ -199,42 +236,45 @@ int get_usecs(unsigned *usecs, const char *str)
        if (*p) {
                if (strcasecmp(p, "s") == 0 || strcasecmp(p, "sec")==0 ||
                    strcasecmp(p, "secs")==0)
-                       t *= 1000000;
+                       t *= TIME_UNITS_PER_SEC;
                else if (strcasecmp(p, "ms") == 0 || strcasecmp(p, "msec")==0 ||
                         strcasecmp(p, "msecs") == 0)
-                       t *= 1000;
+                       t *= TIME_UNITS_PER_SEC/1000;
                else if (strcasecmp(p, "us") == 0 || strcasecmp(p, "usec")==0 ||
                         strcasecmp(p, "usecs") == 0)
-                       t *= 1;
+                       t *= TIME_UNITS_PER_SEC/1000000;
                else
                        return -1;
        }
 
-       *usecs = t;
+       *time = t;
        return 0;
 }
 
 
-int print_usecs(char *buf, int len, __u32 usec)
+void print_time(char *buf, int len, __u32 time)
 {
-       double tmp = usec;
+       double tmp = time;
 
-       if (tmp >= 1000000)
-               snprintf(buf, len, "%.1fs", tmp/1000000);
-       else if (tmp >= 1000)
-               snprintf(buf, len, "%.1fms", tmp/1000);
+       if (tmp >= TIME_UNITS_PER_SEC)
+               snprintf(buf, len, "%.1fs", tmp/TIME_UNITS_PER_SEC);
+       else if (tmp >= TIME_UNITS_PER_SEC/1000)
+               snprintf(buf, len, "%.1fms", tmp/(TIME_UNITS_PER_SEC/1000));
        else
-               snprintf(buf, len, "%uus", usec);
-       return 0;
+               snprintf(buf, len, "%uus", time);
 }
 
-char * sprint_usecs(__u32 usecs, char *buf)
+char * sprint_time(__u32 time, char *buf)
 {
-       if (print_usecs(buf, SPRINT_BSIZE-1, usecs))
-               strcpy(buf, "???");
+       print_time(buf, SPRINT_BSIZE-1, time);
        return buf;
 }
 
+char * sprint_ticks(__u32 ticks, char *buf)
+{
+       return sprint_time(tc_core_tick2time(ticks), buf);
+}
+
 int get_size(unsigned *size, const char *str)
 {
        double sz;
@@ -294,7 +334,7 @@ int get_size_and_cell(unsigned *size, int *cell_log, char *str)
        return 0;
 }
 
-int print_size(char *buf, int len, __u32 sz)
+void print_size(char *buf, int len, __u32 sz)
 {
        double tmp = sz;
 
@@ -304,56 +344,210 @@ int print_size(char *buf, int len, __u32 sz)
                snprintf(buf, len, "%gKb", rint(tmp/1024));
        else
                snprintf(buf, len, "%ub", sz);
-       return 0;
 }
 
 char * sprint_size(__u32 size, char *buf)
 {
-       if (print_size(buf, SPRINT_BSIZE-1, size))
-               strcpy(buf, "???");
+       print_size(buf, SPRINT_BSIZE-1, size);
        return buf;
 }
 
-static double percent_scale = (double)(1ull << 32) / 100.;
+void print_qdisc_handle(char *buf, int len, __u32 h)
+{
+       snprintf(buf, len, "%x:", TC_H_MAJ(h)>>16);
+}
 
-int get_percent(__u32 *percent, const char *str)
+char * sprint_qdisc_handle(__u32 h, char *buf)
 {
-       char *p;
-       double per = strtod(str, &p);
+       print_qdisc_handle(buf, SPRINT_BSIZE-1, h);
+       return buf;
+}
 
-       if (per > 100.)
-               return -1;
-       if (*p && strcmp(p, "%"))
-               return -1;
+char * action_n2a(int action, char *buf, int len)
+{
+       switch (action) {
+       case -1:
+               return "continue";
+               break;
+       case TC_ACT_OK:
+               return "pass";
+               break;
+       case TC_ACT_SHOT:
+               return "drop";
+               break;
+       case TC_ACT_RECLASSIFY:
+               return "reclassify";
+       case TC_ACT_PIPE:
+               return "pipe";
+       case TC_ACT_STOLEN:
+               return "stolen";
+       default:
+               snprintf(buf, len, "%d", action);
+               return buf;
+       }
+}
 
-       *percent = per * percent_scale;
+int action_a2n(char *arg, int *result)
+{
+       int res;
+
+       if (matches(arg, "continue") == 0)
+               res = -1;
+       else if (matches(arg, "drop") == 0)
+               res = TC_ACT_SHOT;
+       else if (matches(arg, "shot") == 0)
+               res = TC_ACT_SHOT;
+       else if (matches(arg, "pass") == 0)
+               res = TC_ACT_OK;
+       else if (strcmp(arg, "ok") == 0)
+               res = TC_ACT_OK;
+       else if (matches(arg, "reclassify") == 0)
+               res = TC_ACT_RECLASSIFY;
+       else {
+               char dummy;
+               if (sscanf(arg, "%d%c", &res, &dummy) != 1)
+                       return -1;
+       }
+       *result = res;
        return 0;
 }
 
-int print_percent(char *buf, int len, __u32 per)
+int get_linklayer(unsigned *val, const char *arg)
 {
-       snprintf(buf, len, "%g%%", (double) per / percent_scale);
+       int res;
+
+       if (matches(arg, "ethernet") == 0)
+               res = LINKLAYER_ETHERNET;
+       else if (matches(arg, "atm") == 0)
+               res = LINKLAYER_ATM;
+       else if (matches(arg, "adsl") == 0)
+               res = LINKLAYER_ATM;
+       else
+               return -1; /* Indicate error */
+
+       *val = res;
        return 0;
 }
 
-char * sprint_percent(__u32 per, char *buf)
+void print_linklayer(char *buf, int len, unsigned linklayer)
 {
-       if (print_percent(buf, SPRINT_BSIZE-1, per))
-               strcpy(buf, "???");
+       switch (linklayer) {
+       case LINKLAYER_UNSPEC:
+               snprintf(buf, len, "%s", "unspec");
+               return;
+       case LINKLAYER_ETHERNET:
+               snprintf(buf, len, "%s", "ethernet");
+               return;
+       case LINKLAYER_ATM:
+               snprintf(buf, len, "%s", "atm");
+               return;
+       default:
+               snprintf(buf, len, "%s", "unknown");
+               return;
+       }
+}
+
+char *sprint_linklayer(unsigned linklayer, char *buf)
+{
+       print_linklayer(buf, SPRINT_BSIZE-1, linklayer);
        return buf;
 }
 
-int print_qdisc_handle(char *buf, int len, __u32 h)
+void print_tm(FILE * f, const struct tcf_t *tm)
 {
-       snprintf(buf, len, "%x:", TC_H_MAJ(h)>>16);
-       return 0;
+       int hz = get_user_hz();
+       if (tm->install != 0)
+               fprintf(f, " installed %u sec", (unsigned)(tm->install/hz));
+       if (tm->lastuse != 0)
+               fprintf(f, " used %u sec", (unsigned)(tm->lastuse/hz));
+       if (tm->expires != 0)
+               fprintf(f, " expires %u sec", (unsigned)(tm->expires/hz));
 }
 
-char * sprint_qdisc_handle(__u32 h, char *buf)
+void print_tcstats2_attr(FILE *fp, struct rtattr *rta, char *prefix, struct rtattr **xstats)
 {
-       if (print_qdisc_handle(buf, SPRINT_BSIZE-1, h))
-               strcpy(buf, "???");
-       return buf;
+       SPRINT_BUF(b1);
+       struct rtattr *tbs[TCA_STATS_MAX + 1];
+
+       parse_rtattr_nested(tbs, TCA_STATS_MAX, rta);
+
+       if (tbs[TCA_STATS_BASIC]) {
+               struct gnet_stats_basic bs = {0};
+               memcpy(&bs, RTA_DATA(tbs[TCA_STATS_BASIC]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]), sizeof(bs)));
+               fprintf(fp, "%sSent %llu bytes %u pkt",
+                       prefix, (unsigned long long) bs.bytes, bs.packets);
+       }
+
+       if (tbs[TCA_STATS_QUEUE]) {
+               struct gnet_stats_queue q = {0};
+               memcpy(&q, RTA_DATA(tbs[TCA_STATS_QUEUE]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_QUEUE]), sizeof(q)));
+               fprintf(fp, " (dropped %u, overlimits %u requeues %u) ",
+                       q.drops, q.overlimits, q.requeues);
+       }
+
+       if (tbs[TCA_STATS_RATE_EST]) {
+               struct gnet_stats_rate_est re = {0};
+               memcpy(&re, RTA_DATA(tbs[TCA_STATS_RATE_EST]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_RATE_EST]), sizeof(re)));
+               fprintf(fp, "\n%srate %s %upps ",
+                       prefix, sprint_rate(re.bps, b1), re.pps);
+       }
+
+       if (tbs[TCA_STATS_QUEUE]) {
+               struct gnet_stats_queue q = {0};
+               memcpy(&q, RTA_DATA(tbs[TCA_STATS_QUEUE]), MIN(RTA_PAYLOAD(tbs[TCA_STATS_QUEUE]), sizeof(q)));
+               if (!tbs[TCA_STATS_RATE_EST])
+                       fprintf(fp, "\n%s", prefix);
+               fprintf(fp, "backlog %s %up requeues %u ",
+                       sprint_size(q.backlog, b1), q.qlen, q.requeues);
+       }
+
+       if (xstats)
+               *xstats = tbs[TCA_STATS_APP] ? : NULL;
 }
 
+void print_tcstats_attr(FILE *fp, struct rtattr *tb[], char *prefix, struct rtattr **xstats)
+{
+       SPRINT_BUF(b1);
+
+       if (tb[TCA_STATS2]) {
+               print_tcstats2_attr(fp, tb[TCA_STATS2], prefix, xstats);
+               if (xstats && NULL == *xstats)
+                       goto compat_xstats;
+               return;
+       }
+       /* backward compatibility */
+       if (tb[TCA_STATS]) {
+               struct tc_stats st;
+
+               /* handle case where kernel returns more/less than we know about */
+               memset(&st, 0, sizeof(st));
+               memcpy(&st, RTA_DATA(tb[TCA_STATS]), MIN(RTA_PAYLOAD(tb[TCA_STATS]), sizeof(st)));
+
+               fprintf(fp, "%sSent %llu bytes %u pkts (dropped %u, overlimits %u) ",
+                       prefix, (unsigned long long)st.bytes, st.packets, st.drops,
+                       st.overlimits);
+
+               if (st.bps || st.pps || st.qlen || st.backlog) {
+                       fprintf(fp, "\n%s", prefix);
+                       if (st.bps || st.pps) {
+                               fprintf(fp, "rate ");
+                               if (st.bps)
+                                       fprintf(fp, "%s ", sprint_rate(st.bps, b1));
+                               if (st.pps)
+                                       fprintf(fp, "%upps ", st.pps);
+                       }
+                       if (st.qlen || st.backlog) {
+                               fprintf(fp, "backlog ");
+                               if (st.backlog)
+                                       fprintf(fp, "%s ", sprint_size(st.backlog, b1));
+                               if (st.qlen)
+                                       fprintf(fp, "%up ", st.qlen);
+                       }
+               }
+       }
+
+compat_xstats:
+       if (tb[TCA_XSTATS] && xstats)
+               *xstats = tb[TCA_XSTATS];
+}