#include <arpa/inet.h>
#include <string.h>
#include <linux/if.h>
+#include <linux/if_ether.h>
#include "utils.h"
#include "tc_util.h"
+extern int show_pretty;
+
static void explain(void)
{
- fprintf(stderr, "Usage: ... u32 [ match SELECTOR ... ] [ link HTID ] [ classid CLASSID ]\n");
- fprintf(stderr, " [ police POLICE_SPEC ] [ offset OFFSET_SPEC ]\n");
+ fprintf(stderr, "Usage: ... u32 [ match SELECTOR ... ] [ link HTID ]"
+ " [ classid CLASSID ]\n");
+ fprintf(stderr, " [ police POLICE_SPEC ]"
+ " [ offset OFFSET_SPEC ]\n");
fprintf(stderr, " [ ht HTID ] [ hashkey HASHKEY_SPEC ]\n");
fprintf(stderr, " [ sample SAMPLE ]\n");
fprintf(stderr, "or u32 divisor DIVISOR\n");
fprintf(stderr, "\n");
fprintf(stderr, "Where: SELECTOR := SAMPLE SAMPLE ...\n");
- fprintf(stderr, " SAMPLE := { ip | ip6 | udp | tcp | icmp | u{32|16|8} | mark } SAMPLE_ARGS [divisor DIVISOR]\n");
+ fprintf(stderr, " SAMPLE := { ip | ip6 | udp | tcp | icmp |"
+ " u{32|16|8} | mark } SAMPLE_ARGS [divisor DIVISOR]\n");
fprintf(stderr, " FILTERID := X:Y:Z\n");
+ fprintf(stderr, "\nNOTE: CLASSID is parsed at hexadecimal input.\n");
}
#define usage() return(-1)
return buf;
}
-static int pack_key(struct tc_u32_sel *sel, __u32 key, __u32 mask, int off, int offmask)
+static int pack_key(struct tc_u32_sel *sel, __u32 key, __u32 mask,
+ int off, int offmask)
{
int i;
int hwm = sel->nkeys;
return 0;
}
-static int pack_key32(struct tc_u32_sel *sel, __u32 key, __u32 mask, int off, int offmask)
+static int pack_key32(struct tc_u32_sel *sel, __u32 key, __u32 mask,
+ int off, int offmask)
{
key = htonl(key);
mask = htonl(mask);
return pack_key(sel, key, mask, off, offmask);
}
-static int pack_key16(struct tc_u32_sel *sel, __u32 key, __u32 mask, int off, int offmask)
+static int pack_key16(struct tc_u32_sel *sel, __u32 key, __u32 mask,
+ int off, int offmask)
{
if (key > 0xFFFF || mask > 0xFFFF)
return -1;
}
-static int parse_u32(int *argc_p, char ***argv_p, struct tc_u32_sel *sel, int off, int offmask)
+static int parse_u32(int *argc_p, char ***argv_p, struct tc_u32_sel *sel,
+ int off, int offmask)
{
int res = -1;
int argc = *argc_p;
return res;
}
-static int parse_u16(int *argc_p, char ***argv_p, struct tc_u32_sel *sel, int off, int offmask)
+static int parse_u16(int *argc_p, char ***argv_p, struct tc_u32_sel *sel,
+ int off, int offmask)
{
int res = -1;
int argc = *argc_p;
return res;
}
-static int parse_u8(int *argc_p, char ***argv_p, struct tc_u32_sel *sel, int off, int offmask)
+static int parse_u8(int *argc_p, char ***argv_p, struct tc_u32_sel *sel,
+ int off, int offmask)
{
int res = -1;
int argc = *argc_p;
return res;
}
-static int parse_ip_addr(int *argc_p, char ***argv_p, struct tc_u32_sel *sel, int off)
+static int parse_ip_addr(int *argc_p, char ***argv_p, struct tc_u32_sel *sel,
+ int off)
{
int res = -1;
int argc = *argc_p;
return res;
}
-static int parse_ip6_addr(int *argc_p, char ***argv_p, struct tc_u32_sel *sel, int off)
+static int parse_ip6_addr(int *argc_p, char ***argv_p,
+ struct tc_u32_sel *sel, int off)
{
int res = -1;
int argc = *argc_p;
plen = addr.bitlen;
for (i=0; i<plen; i+=32) {
// if (((i+31)&~0x1F)<=plen) {
- if (((i+31))<=plen) {
- if ((res = pack_key(sel, addr.data[i/32], 0xFFFFFFFF, off+4*(i/32), offmask)) < 0)
+ if (i + 31 <= plen) {
+ res = pack_key(sel, addr.data[i/32],
+ 0xFFFFFFFF, off+4*(i/32), offmask);
+ if (res < 0)
return -1;
- } else if (i<plen) {
- __u32 mask = htonl(0xFFFFFFFF<<(32-(plen-i)));
- if ((res = pack_key(sel, addr.data[i/32], mask, off+4*(i/32), offmask)) < 0)
+ } else if (i < plen) {
+ __u32 mask = htonl(0xFFFFFFFF << (32 - (plen -i )));
+ res = pack_key(sel, addr.data[i/32],
+ mask, off+4*(i/32), offmask);
+ if (res < 0)
return -1;
}
}
*argv_p = argv;
return res;
}
-
+
static int parse_ip6(int *argc_p, char ***argv_p, struct tc_u32_sel *sel)
{
int res = -1;
return res;
}
+
static int parse_icmp(int *argc_p, char ***argv_p, struct tc_u32_sel *sel)
{
int res = -1;
return res;
}
-static int parse_selector(int *argc_p, char ***argv_p, struct tc_u32_sel *sel, struct nlmsghdr *n)
+static int parse_selector(int *argc_p, char ***argv_p,
+ struct tc_u32_sel *sel, struct nlmsghdr *n)
{
int argc = *argc_p;
char **argv = *argv_p;
return 0;
}
-static int u32_parse_opt(struct filter_util *qu, char *handle, int argc, char **argv, struct nlmsghdr *n)
+static void print_ipv4(FILE *f, const struct tc_u32_key *key)
+{
+ char abuf[256];
+
+ switch (key->off) {
+ case 0:
+ switch (ntohl(key->mask)) {
+ case 0x0f000000:
+ fprintf(f, "\n match IP ihl %u", ntohl(key->val) >> 24);
+ return;
+ case 0x00ff0000:
+ fprintf(f, "\n match IP dsfield %#x", ntohl(key->val) >> 16);
+ return;
+ }
+ break;
+ case 8:
+ if (ntohl(key->mask) == 0x00ff0000) {
+ fprintf(f, "\n match IP protocol %d", ntohl(key->val) >> 16);
+ return;
+ }
+ break;
+ case 12:
+ case 16: {
+ int bits = mask2bits(key->mask);
+ if (bits >= 0) {
+ fprintf(f, "\n %s %s/%d",
+ key->off == 12 ? "match IP src" : "match IP dst",
+ inet_ntop(AF_INET, &key->val,
+ abuf, sizeof(abuf)),
+ bits);
+ return;
+ }
+ }
+ break;
+
+ case 20:
+ switch (ntohl(key->mask)) {
+ case 0x0000ffff:
+ fprintf(f, "\n match sport %u",
+ ntohl(key->val) & 0xffff);
+ return;
+ case 0xffff0000:
+ fprintf(f, "\n match dport %u",
+ ntohl(key->val) >> 16);
+ return;
+ case 0xffffffff:
+ fprintf(f, "\n match sport %u, match dport %u",
+ ntohl(key->val) & 0xffff,
+ ntohl(key->val) >> 16);
+
+ return;
+ }
+ /* XXX: Default print_raw */
+ }
+}
+
+static void print_raw(FILE *f, const struct tc_u32_key *key)
+{
+ fprintf(f, "\n match %08x/%08x at %s%d",
+ (unsigned int)ntohl(key->val),
+ (unsigned int)ntohl(key->mask),
+ key->offmask ? "nexthdr+" : "",
+ key->off);
+}
+
+static const struct {
+ __u16 proto;
+ __u16 pad;
+ void (*pprinter)(FILE *f, const struct tc_u32_key *key);
+} u32_pprinters[] = {
+ {0, 0, print_raw},
+ {ETH_P_IP, 0, print_ipv4},
+};
+
+static void show_keys(FILE *f, const struct tc_u32_key *key)
+{
+ int i = 0;
+
+ if (!show_pretty)
+ goto show_k;
+
+ for (i = 0; i < sizeof(u32_pprinters) / sizeof(u32_pprinters[0]); i++) {
+ if (u32_pprinters[i].proto == ntohs(f_proto)) {
+show_k:
+ u32_pprinters[i].pprinter(f, key);
+ return;
+ }
+ }
+
+ i = 0;
+ goto show_k;
+}
+
+static int u32_parse_opt(struct filter_util *qu, char *handle,
+ int argc, char **argv, struct nlmsghdr *n)
{
struct {
struct tc_u32_sel sel;
} sel;
struct tcmsg *t = NLMSG_DATA(n);
struct rtattr *tail;
- int sel_ok = 0;
+ int sel_ok = 0, terminal_ok = 0;
int sample_ok = 0;
__u32 htid = 0;
__u32 order = 0;
} else if (matches(*argv, "divisor") == 0) {
unsigned divisor;
NEXT_ARG();
- if (get_unsigned(&divisor, *argv, 0) ||
+ if (get_unsigned(&divisor, *argv, 0) ||
divisor == 0 ||
divisor > 0x100 || ((divisor - 1) & divisor)) {
fprintf(stderr, "Illegal \"divisor\"\n");
return -1;
}
if (sel2.sel.nkeys != 1) {
- fprintf(stderr, "\"sample\" must contain exactly ONE key.\n");
+ fprintf(stderr, "\"sample\" must contain"
+ " exactly ONE key.\n");
return -1;
}
if (*argv != 0 && strcmp(*argv, "divisor") == 0) {
fprintf(stderr, "Illegal \"action\"\n");
return -1;
}
+ terminal_ok++;
continue;
} else if (matches(*argv, "police") == 0) {
fprintf(stderr, "Illegal \"police\"\n");
return -1;
}
+ terminal_ok++;
continue;
} else if (strcmp(*argv, "help") == 0) {
explain();
argc--; argv++;
}
+ /* We dont necessarily need class/flowids */
+ if (terminal_ok)
+ sel.sel.flags |= TC_U32_TERMINAL;
+
if (order) {
if (TC_U32_NODE(t->tcm_handle) && order != TC_U32_NODE(t->tcm_handle)) {
fprintf(stderr, "\"order\" contradicts \"handle\"\n");
if (htid)
addattr_l(n, MAX_MSG, TCA_U32_HASH, &htid, 4);
if (sel_ok)
- addattr_l(n, MAX_MSG, TCA_U32_SEL, &sel, sizeof(sel.sel)+sel.sel.nkeys*sizeof(struct tc_u32_key));
+ addattr_l(n, MAX_MSG, TCA_U32_SEL, &sel,
+ sizeof(sel.sel)+sel.sel.nkeys*sizeof(struct tc_u32_key));
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
return 0;
}
-static int u32_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 handle)
+static int u32_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt,
+ __u32 handle)
{
struct rtattr *tb[TCA_U32_MAX+1];
struct tc_u32_sel *sel = NULL;
fprintf(f, "ht divisor %d ", *(__u32*)RTA_DATA(tb[TCA_U32_DIVISOR]));
} else if (tb[TCA_U32_HASH]) {
__u32 htid = *(__u32*)RTA_DATA(tb[TCA_U32_HASH]);
- fprintf(f, "key ht %x bkt %x ", TC_U32_USERHTID(htid), TC_U32_HASH(htid));
+ fprintf(f, "key ht %x bkt %x ", TC_U32_USERHTID(htid),
+ TC_U32_HASH(htid));
} else {
fprintf(f, "??? ");
}
}
if (tb[TCA_U32_LINK]) {
SPRINT_BUF(b1);
- fprintf(f, "link %s ", sprint_u32_handle(*(__u32*)RTA_DATA(tb[TCA_U32_LINK]), b1));
+ fprintf(f, "link %s ",
+ sprint_u32_handle(*(__u32*)RTA_DATA(tb[TCA_U32_LINK]), b1));
}
if (tb[TCA_U32_PCNT]) {
}
if (sel) {
- int i;
- struct tc_u32_key *key = sel->keys;
if (sel->nkeys) {
- for (i=0; i<sel->nkeys; i++, key++) {
- fprintf(f, "\n match %08x/%08x at %s%d",
- (unsigned int)ntohl(key->val),
- (unsigned int)ntohl(key->mask),
- key->offmask ? "nexthdr+" : "",
- key->off);
+ int i;
+ for (i=0; i<sel->nkeys; i++) {
+ show_keys(f, sel->keys + i);
if (show_stats && NULL != pf)
- fprintf(f, " (success %lld ) ",
+ fprintf(f, " (success %llu ) ",
(unsigned long long) pf->kcnts[i]);
}
}
if (sel->flags&(TC_U32_VAROFFSET|TC_U32_OFFSET)) {
fprintf(f, "\n offset ");
if (sel->flags&TC_U32_VAROFFSET)
- fprintf(f, "%04x>>%d at %d ", ntohs(sel->offmask), sel->offshift, sel->offoff);
+ fprintf(f, "%04x>>%d at %d ",
+ ntohs(sel->offmask),
+ sel->offshift, sel->offoff);
if (sel->off)
fprintf(f, "plus %d ", sel->off);
}
git://git.onelab.eu / iproute2.git / blobdiff