4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
19 #include <sys/socket.h>
20 #include <netinet/in.h>
24 #include <arpa/inet.h>
25 #include <asm/types.h>
26 #include <linux/pkt_sched.h>
27 #include <linux/param.h>
28 #include <linux/if_arp.h>
29 #include <linux/mpls.h>
36 #include "namespace.h"
41 int read_prop(const char *dev
, char *prop
, long *value
)
43 char fname
[128], buf
[80], *endp
, *nl
;
48 ret
= snprintf(fname
, sizeof(fname
), "/sys/class/net/%s/%s",
51 if (ret
<= 0 || ret
>= sizeof(fname
)) {
52 fprintf(stderr
, "could not build pathname for property\n");
56 fp
= fopen(fname
, "r");
58 fprintf(stderr
, "fopen %s: %s\n", fname
, strerror(errno
));
62 if (!fgets(buf
, sizeof(buf
), fp
)) {
63 fprintf(stderr
, "property \"%s\" in file %s is currently unknown\n", prop
, fname
);
68 nl
= strchr(buf
, '\n');
73 result
= strtol(buf
, &endp
, 0);
75 if (*endp
|| buf
== endp
) {
76 fprintf(stderr
, "value \"%s\" in file %s is not a number\n",
81 if ((result
== LONG_MAX
|| result
== LONG_MIN
) && errno
== ERANGE
) {
82 fprintf(stderr
, "strtol %s: %s", fname
, strerror(errno
));
89 fprintf(stderr
, "Failed to parse %s\n", fname
);
93 /* Parse a percent e.g: '30%'
94 * return: 0 = ok, -1 = error, 1 = out of range
96 int parse_percent(double *val
, const char *str
)
100 *val
= strtod(str
, &p
) / 100.;
101 if (*val
== HUGE_VALF
|| *val
== HUGE_VALL
)
103 if (*val
== 0.0 || (*p
&& strcmp(p
, "%")))
111 if (c
>= 'A' && c
<= 'F')
113 if (c
>= 'a' && c
<= 'f')
115 if (c
>= '0' && c
<= '9')
121 int get_integer(int *val
, const char *arg
, int base
)
129 res
= strtol(arg
, &ptr
, base
);
131 /* If there were no digits at all, strtol() stores
132 * the original value of nptr in *endptr (and returns 0).
133 * In particular, if *nptr is not '\0' but **endptr is '\0' on return,
134 * the entire string is valid.
136 if (!ptr
|| ptr
== arg
|| *ptr
)
139 /* If an underflow occurs, strtol() returns LONG_MIN.
140 * If an overflow occurs, strtol() returns LONG_MAX.
141 * In both cases, errno is set to ERANGE.
143 if ((res
== LONG_MAX
|| res
== LONG_MIN
) && errno
== ERANGE
)
146 /* Outside range of int */
147 if (res
< INT_MIN
|| res
> INT_MAX
)
154 int mask2bits(__u32 netmask
)
156 unsigned int bits
= 0;
157 __u32 mask
= ntohl(netmask
);
160 /* a valid netmask must be 2^n - 1 */
161 if ((host
& (host
+ 1)) != 0)
164 for (; mask
; mask
<<= 1)
169 static int get_netmask(unsigned int *val
, const char *arg
, int base
)
173 if (!get_unsigned(val
, arg
, base
))
176 /* try coverting dotted quad to CIDR */
177 if (!get_addr_1(&addr
, arg
, AF_INET
) && addr
.family
== AF_INET
) {
178 int b
= mask2bits(addr
.data
[0]);
189 int get_unsigned(unsigned int *val
, const char *arg
, int base
)
197 res
= strtoul(arg
, &ptr
, base
);
199 /* empty string or trailing non-digits */
200 if (!ptr
|| ptr
== arg
|| *ptr
)
204 if (res
== ULONG_MAX
&& errno
== ERANGE
)
207 /* out side range of unsigned */
216 * get_time_rtt is "translated" from a similar routine "get_time" in
217 * tc_util.c. We don't use the exact same routine because tc passes
218 * microseconds to the kernel and the callers of get_time_rtt want to
219 * pass milliseconds (standard unit for rtt values since 2.6.27), and
220 * have a different assumption for the units of a "raw" number.
222 int get_time_rtt(unsigned int *val
, const char *arg
, int *raw
)
228 if (strchr(arg
, '.') != NULL
) {
238 if ((t
== HUGE_VALF
|| t
== HUGE_VALL
) && errno
== ERANGE
)
241 res
= strtoul(arg
, &p
, 0);
248 if (res
== ULONG_MAX
&& errno
== ERANGE
)
260 if (strcasecmp(p
, "s") == 0 ||
261 strcasecmp(p
, "sec") == 0 ||
262 strcasecmp(p
, "secs") == 0)
264 else if (strcasecmp(p
, "ms") == 0 ||
265 strcasecmp(p
, "msec") == 0 ||
266 strcasecmp(p
, "msecs") == 0)
267 t
*= 1.0; /* allow suffix, do nothing */
272 /* emulate ceil() without having to bring-in -lm and always be >= 1 */
281 int get_u64(__u64
*val
, const char *arg
, int base
)
283 unsigned long long res
;
289 res
= strtoull(arg
, &ptr
, base
);
291 /* empty string or trailing non-digits */
292 if (!ptr
|| ptr
== arg
|| *ptr
)
296 if (res
== ULLONG_MAX
&& errno
== ERANGE
)
299 /* in case ULL is 128 bits */
300 if (res
> 0xFFFFFFFFFFFFFFFFULL
)
307 int get_u32(__u32
*val
, const char *arg
, int base
)
314 res
= strtoul(arg
, &ptr
, base
);
316 /* empty string or trailing non-digits */
317 if (!ptr
|| ptr
== arg
|| *ptr
)
321 if (res
== ULONG_MAX
&& errno
== ERANGE
)
324 /* in case UL > 32 bits */
325 if (res
> 0xFFFFFFFFUL
)
332 int get_u16(__u16
*val
, const char *arg
, int base
)
339 res
= strtoul(arg
, &ptr
, base
);
341 /* empty string or trailing non-digits */
342 if (!ptr
|| ptr
== arg
|| *ptr
)
346 if (res
== ULONG_MAX
&& errno
== ERANGE
)
356 int get_u8(__u8
*val
, const char *arg
, int base
)
364 res
= strtoul(arg
, &ptr
, base
);
365 /* empty string or trailing non-digits */
366 if (!ptr
|| ptr
== arg
|| *ptr
)
370 if (res
== ULONG_MAX
&& errno
== ERANGE
)
380 int get_s32(__s32
*val
, const char *arg
, int base
)
389 res
= strtol(arg
, &ptr
, base
);
390 if (!ptr
|| ptr
== arg
|| *ptr
)
392 if ((res
== LONG_MIN
|| res
== LONG_MAX
) && errno
== ERANGE
)
394 if (res
> INT32_MAX
|| res
< INT32_MIN
)
401 int get_s16(__s16
*val
, const char *arg
, int base
)
408 res
= strtol(arg
, &ptr
, base
);
409 if (!ptr
|| ptr
== arg
|| *ptr
)
411 if ((res
== LONG_MIN
|| res
== LONG_MAX
) && errno
== ERANGE
)
413 if (res
> 0x7FFF || res
< -0x8000)
420 int get_s8(__s8
*val
, const char *arg
, int base
)
427 res
= strtol(arg
, &ptr
, base
);
428 if (!ptr
|| ptr
== arg
|| *ptr
)
430 if ((res
== LONG_MIN
|| res
== LONG_MAX
) && errno
== ERANGE
)
432 if (res
> 0x7F || res
< -0x80)
438 int get_be64(__be64
*val
, const char *arg
, int base
)
441 int ret
= get_u64(&v
, arg
, base
);
449 int get_be32(__be32
*val
, const char *arg
, int base
)
452 int ret
= get_u32(&v
, arg
, base
);
460 int get_be16(__be16
*val
, const char *arg
, int base
)
463 int ret
= get_u16(&v
, arg
, base
);
471 /* This uses a non-standard parsing (ie not inet_aton, or inet_pton)
472 * because of legacy choice to parse 10.8 as 10.8.0.0 not 10.0.0.8
474 static int get_addr_ipv4(__u8
*ap
, const char *cp
)
478 for (i
= 0; i
< 4; i
++) {
482 n
= strtoul(cp
, &endp
, 0);
484 return -1; /* bogus network value */
486 if (endp
== cp
) /* no digits */
494 if (i
== 3 || *endp
!= '.')
495 return -1; /* extra characters */
502 int get_addr64(__u64
*ap
, const char *cp
)
511 for (i
= 0; i
< 4; i
++) {
515 n
= strtoul(cp
, &endp
, 16);
517 return -1; /* bogus network value */
519 if (endp
== cp
) /* no digits */
522 val
.v16
[i
] = htons(n
);
527 if (i
== 3 || *endp
!= ':')
528 return -1; /* extra characters */
537 static void set_address_type(inet_prefix
*addr
)
539 switch (addr
->family
) {
542 addr
->flags
|= ADDRTYPE_INET_UNSPEC
;
543 else if (IN_MULTICAST(ntohl(addr
->data
[0])))
544 addr
->flags
|= ADDRTYPE_INET_MULTI
;
546 addr
->flags
|= ADDRTYPE_INET
;
549 if (IN6_IS_ADDR_UNSPECIFIED(addr
->data
))
550 addr
->flags
|= ADDRTYPE_INET_UNSPEC
;
551 else if (IN6_IS_ADDR_MULTICAST(addr
->data
))
552 addr
->flags
|= ADDRTYPE_INET_MULTI
;
554 addr
->flags
|= ADDRTYPE_INET
;
559 static int __get_addr_1(inet_prefix
*addr
, const char *name
, int family
)
561 memset(addr
, 0, sizeof(*addr
));
563 if (strcmp(name
, "default") == 0 ||
564 strcmp(name
, "all") == 0 ||
565 strcmp(name
, "any") == 0) {
566 if ((family
== AF_DECnet
) || (family
== AF_MPLS
))
568 addr
->family
= (family
!= AF_UNSPEC
) ? family
: AF_INET
;
569 addr
->bytelen
= af_byte_len(addr
->family
);
574 if (family
== AF_PACKET
) {
577 len
= ll_addr_a2n((char *) &addr
->data
, sizeof(addr
->data
),
582 addr
->family
= AF_PACKET
;
584 addr
->bitlen
= len
* 8;
588 if (strchr(name
, ':')) {
589 addr
->family
= AF_INET6
;
590 if (family
!= AF_UNSPEC
&& family
!= AF_INET6
)
592 if (inet_pton(AF_INET6
, name
, addr
->data
) <= 0)
599 if (family
== AF_DECnet
) {
602 addr
->family
= AF_DECnet
;
603 if (dnet_pton(AF_DECnet
, name
, &dna
) <= 0)
605 memcpy(addr
->data
, dna
.a_addr
, 2);
611 if (family
== AF_MPLS
) {
612 unsigned int maxlabels
;
615 addr
->family
= AF_MPLS
;
616 if (mpls_pton(AF_MPLS
, name
, addr
->data
,
617 sizeof(addr
->data
)) <= 0)
621 /* How many bytes do I need? */
622 maxlabels
= sizeof(addr
->data
) / sizeof(struct mpls_label
);
623 for (i
= 0; i
< maxlabels
; i
++) {
624 if (ntohl(addr
->data
[i
]) & MPLS_LS_S_MASK
) {
625 addr
->bytelen
= (i
+ 1)*4;
632 addr
->family
= AF_INET
;
633 if (family
!= AF_UNSPEC
&& family
!= AF_INET
)
636 if (get_addr_ipv4((__u8
*)addr
->data
, name
) <= 0)
644 int get_addr_1(inet_prefix
*addr
, const char *name
, int family
)
648 ret
= __get_addr_1(addr
, name
, family
);
652 set_address_type(addr
);
656 int af_bit_len(int af
)
674 int af_byte_len(int af
)
676 return af_bit_len(af
) / 8;
679 int get_prefix_1(inet_prefix
*dst
, char *arg
, int family
)
682 int err
, bitlen
, flags
;
684 slash
= strchr(arg
, '/');
688 err
= get_addr_1(dst
, arg
, family
);
696 bitlen
= af_bit_len(dst
->family
);
698 flags
= PREFIXLEN_SPECIFIED
;
702 if (dst
->bitlen
== -2)
704 if (get_netmask(&plen
, slash
+ 1, 0))
711 if (dst
->bitlen
== -2)
718 dst
->bitlen
= bitlen
;
723 static const char *family_name_verbose(int family
)
725 if (family
== AF_UNSPEC
)
727 return family_name(family
);
730 int get_addr(inet_prefix
*dst
, const char *arg
, int family
)
732 if (get_addr_1(dst
, arg
, family
)) {
734 "Error: %s address is expected rather than \"%s\".\n",
735 family_name_verbose(family
), arg
);
741 int get_addr_rta(inet_prefix
*dst
, const struct rtattr
*rta
, int family
)
743 const int len
= RTA_PAYLOAD(rta
);
744 const void *data
= RTA_DATA(rta
);
748 dst
->family
= AF_INET
;
750 memcpy(dst
->data
, data
, 4);
753 dst
->family
= AF_INET6
;
755 memcpy(dst
->data
, data
, 16);
758 dst
->family
= AF_DECnet
;
760 memcpy(dst
->data
, data
, 2);
763 dst
->family
= AF_IPX
;
765 memcpy(dst
->data
, data
, 10);
771 if (family
!= AF_UNSPEC
&& family
!= dst
->family
)
777 set_address_type(dst
);
781 int get_prefix(inet_prefix
*dst
, char *arg
, int family
)
783 if (family
== AF_PACKET
) {
785 "Error: \"%s\" may be inet prefix, but it is not allowed in this context.\n",
790 if (get_prefix_1(dst
, arg
, family
)) {
792 "Error: %s prefix is expected rather than \"%s\".\n",
793 family_name_verbose(family
), arg
);
799 __u32
get_addr32(const char *name
)
803 if (get_addr_1(&addr
, name
, AF_INET
)) {
805 "Error: an IP address is expected rather than \"%s\"\n",
812 void incomplete_command(void)
814 fprintf(stderr
, "Command line is not complete. Try option \"help\"\n");
818 void missarg(const char *key
)
820 fprintf(stderr
, "Error: argument \"%s\" is required\n", key
);
824 void invarg(const char *msg
, const char *arg
)
826 fprintf(stderr
, "Error: argument \"%s\" is wrong: %s\n", arg
, msg
);
830 void duparg(const char *key
, const char *arg
)
833 "Error: duplicate \"%s\": \"%s\" is the second value.\n",
838 void duparg2(const char *key
, const char *arg
)
841 "Error: either \"%s\" is duplicate, or \"%s\" is a garbage.\n",
846 int check_ifname(const char *name
)
848 /* These checks mimic kernel checks in dev_valid_name */
851 if (strlen(name
) >= IFNAMSIZ
)
855 if (*name
== '/' || isspace(*name
))
862 /* buf is assumed to be IFNAMSIZ */
863 int get_ifname(char *buf
, const char *name
)
867 ret
= check_ifname(name
);
869 strncpy(buf
, name
, IFNAMSIZ
);
874 int matches(const char *cmd
, const char *pattern
)
876 int len
= strlen(cmd
);
878 if (len
> strlen(pattern
))
880 return memcmp(pattern
, cmd
, len
);
883 int inet_addr_match(const inet_prefix
*a
, const inet_prefix
*b
, int bits
)
885 const __u32
*a1
= a
->data
;
886 const __u32
*a2
= b
->data
;
887 int words
= bits
>> 0x05;
892 if (memcmp(a1
, a2
, words
<< 2))
902 mask
= htonl((0xffffffff) << (0x20 - bits
));
904 if ((w1
^ w2
) & mask
)
911 int inet_addr_match_rta(const inet_prefix
*m
, const struct rtattr
*rta
)
915 if (!rta
|| m
->family
== AF_UNSPEC
|| m
->bitlen
<= 0)
918 if (get_addr_rta(&dst
, rta
, m
->family
))
921 return inet_addr_match(&dst
, m
, m
->bitlen
);
924 int __iproute2_hz_internal
;
933 return atoi(getenv("HZ")) ? : HZ
;
935 if (getenv("PROC_NET_PSCHED"))
936 snprintf(name
, sizeof(name
)-1,
937 "%s", getenv("PROC_NET_PSCHED"));
938 else if (getenv("PROC_ROOT"))
939 snprintf(name
, sizeof(name
)-1,
940 "%s/net/psched", getenv("PROC_ROOT"));
942 strcpy(name
, "/proc/net/psched");
944 fp
= fopen(name
, "r");
947 unsigned int nom
, denom
;
949 if (fscanf(fp
, "%*08x%*08x%08x%08x", &nom
, &denom
) == 2)
959 int __iproute2_user_hz_internal
;
961 int __get_user_hz(void)
963 return sysconf(_SC_CLK_TCK
);
966 const char *rt_addr_n2a_r(int af
, int len
,
967 const void *addr
, char *buf
, int buflen
)
972 return inet_ntop(af
, addr
, buf
, buflen
);
974 return mpls_ntop(af
, addr
, buf
, buflen
);
976 return ipx_ntop(af
, addr
, buf
, buflen
);
979 struct dn_naddr dna
= { 2, { 0, 0, } };
981 memcpy(dna
.a_addr
, addr
, 2);
982 return dnet_ntop(af
, &dna
, buf
, buflen
);
985 return ll_addr_n2a(addr
, len
, ARPHRD_VOID
, buf
, buflen
);
991 const char *rt_addr_n2a(int af
, int len
, const void *addr
)
993 static char buf
[256];
995 return rt_addr_n2a_r(af
, len
, addr
, buf
, 256);
998 int read_family(const char *name
)
1000 int family
= AF_UNSPEC
;
1002 if (strcmp(name
, "inet") == 0)
1004 else if (strcmp(name
, "inet6") == 0)
1006 else if (strcmp(name
, "dnet") == 0)
1008 else if (strcmp(name
, "link") == 0)
1010 else if (strcmp(name
, "ipx") == 0)
1012 else if (strcmp(name
, "mpls") == 0)
1014 else if (strcmp(name
, "bridge") == 0)
1019 const char *family_name(int family
)
1021 if (family
== AF_INET
)
1023 if (family
== AF_INET6
)
1025 if (family
== AF_DECnet
)
1027 if (family
== AF_PACKET
)
1029 if (family
== AF_IPX
)
1031 if (family
== AF_MPLS
)
1033 if (family
== AF_BRIDGE
)
1038 #ifdef RESOLVE_HOSTNAMES
1040 struct namerec
*next
;
1046 static struct namerec
*nht
[NHASH
];
1048 static const char *resolve_address(const void *addr
, int len
, int af
)
1051 struct hostent
*h_ent
;
1053 static int notfirst
;
1056 if (af
== AF_INET6
&& ((__u32
*)addr
)[0] == 0 &&
1057 ((__u32
*)addr
)[1] == 0 && ((__u32
*)addr
)[2] == htonl(0xffff)) {
1063 hash
= *(__u32
*)(addr
+ len
- 4) % NHASH
;
1065 for (n
= nht
[hash
]; n
; n
= n
->next
) {
1066 if (n
->addr
.family
== af
&&
1067 n
->addr
.bytelen
== len
&&
1068 memcmp(n
->addr
.data
, addr
, len
) == 0)
1071 n
= malloc(sizeof(*n
));
1074 n
->addr
.family
= af
;
1075 n
->addr
.bytelen
= len
;
1077 memcpy(n
->addr
.data
, addr
, len
);
1078 n
->next
= nht
[hash
];
1080 if (++notfirst
== 1)
1084 h_ent
= gethostbyaddr(addr
, len
, af
);
1086 n
->name
= strdup(h_ent
->h_name
);
1088 /* Even if we fail, "negative" entry is remembered. */
1093 const char *format_host_r(int af
, int len
, const void *addr
,
1094 char *buf
, int buflen
)
1096 #ifdef RESOLVE_HOSTNAMES
1097 if (resolve_hosts
) {
1100 len
= len
<= 0 ? af_byte_len(af
) : len
;
1103 (n
= resolve_address(addr
, len
, af
)) != NULL
)
1107 return rt_addr_n2a_r(af
, len
, addr
, buf
, buflen
);
1110 const char *format_host(int af
, int len
, const void *addr
)
1112 static char buf
[256];
1114 return format_host_r(af
, len
, addr
, buf
, 256);
1118 char *hexstring_n2a(const __u8
*str
, int len
, char *buf
, int blen
)
1123 for (i
= 0; i
< len
; i
++) {
1126 sprintf(ptr
, "%02x", str
[i
]);
1133 __u8
*hexstring_a2n(const char *str
, __u8
*buf
, int blen
, unsigned int *len
)
1135 unsigned int cnt
= 0;
1138 if (strlen(str
) % 2)
1140 while (cnt
< blen
&& strlen(str
) > 1) {
1144 strncpy(tmpstr
, str
, 2);
1147 tmp
= strtoul(tmpstr
, &endptr
, 16);
1148 if (errno
!= 0 || tmp
> 0xFF || *endptr
!= '\0')
1160 int hex2mem(const char *buf
, uint8_t *mem
, int count
)
1165 for (i
= 0, j
= 0; i
< count
; i
++, j
+= 2) {
1166 c
= get_hex(buf
[j
]);
1172 c
= get_hex(buf
[j
+ 1]);
1182 int addr64_n2a(__u64 addr
, char *buff
, size_t len
)
1184 __u16
*words
= (__u16
*)&addr
;
1190 for (i
= 0; i
< 4; i
++) {
1191 v
= ntohs(words
[i
]);
1196 ret
= snprintf(&buff
[written
], len
- written
, "%x%s", v
, sep
);
1206 /* Print buffer and escape bytes that are !isprint or among 'escape' */
1207 void print_escape_buf(const __u8
*buf
, size_t len
, const char *escape
)
1211 for (i
= 0; i
< len
; ++i
) {
1212 if (isprint(buf
[i
]) && buf
[i
] != '\\' &&
1213 !strchr(escape
, buf
[i
]))
1214 printf("%c", buf
[i
]);
1216 printf("\\%03o", buf
[i
]);
1220 int print_timestamp(FILE *fp
)
1225 gettimeofday(&tv
, NULL
);
1226 tm
= localtime(&tv
.tv_sec
);
1228 if (timestamp_short
) {
1231 strftime(tshort
, sizeof(tshort
), "%Y-%m-%dT%H:%M:%S", tm
);
1232 fprintf(fp
, "[%s.%06ld] ", tshort
, tv
.tv_usec
);
1234 char *tstr
= asctime(tm
);
1236 tstr
[strlen(tstr
)-1] = 0;
1237 fprintf(fp
, "Timestamp: %s %ld usec\n",
1246 /* Like glibc getline but handle continuation lines and comments */
1247 ssize_t
getcmdline(char **linep
, size_t *lenp
, FILE *in
)
1252 cc
= getline(linep
, lenp
, in
);
1254 return cc
; /* eof or error */
1257 cp
= strchr(*linep
, '#');
1261 while ((cp
= strstr(*linep
, "\\\n")) != NULL
) {
1266 cc1
= getline(&line1
, &len1
, in
);
1268 fprintf(stderr
, "Missing continuation line\n");
1275 cp
= strchr(line1
, '#');
1279 *lenp
= strlen(*linep
) + strlen(line1
) + 1;
1280 *linep
= realloc(*linep
, *lenp
);
1282 fprintf(stderr
, "Out of memory\n");
1287 strcat(*linep
, line1
);
1293 /* split command line into argument vector */
1294 int makeargs(char *line
, char *argv
[], int maxargs
)
1296 static const char ws
[] = " \t\r\n";
1301 /* skip leading whitespace */
1302 cp
+= strspn(cp
, ws
);
1307 if (argc
>= (maxargs
- 1)) {
1308 fprintf(stderr
, "Too many arguments to command\n");
1312 /* word begins with quote */
1313 if (*cp
== '\'' || *cp
== '"') {
1317 /* find ending quote */
1318 cp
= strchr(cp
, quote
);
1320 fprintf(stderr
, "Unterminated quoted string\n");
1326 /* find end of word */
1327 cp
+= strcspn(cp
, ws
);
1332 /* seperate words */
1340 void print_nlmsg_timestamp(FILE *fp
, const struct nlmsghdr
*n
)
1343 time_t secs
= ((__u32
*)NLMSG_DATA(n
))[0];
1344 long usecs
= ((__u32
*)NLMSG_DATA(n
))[1];
1346 tstr
= asctime(localtime(&secs
));
1347 tstr
[strlen(tstr
)-1] = 0;
1348 fprintf(fp
, "Timestamp: %s %lu us\n", tstr
, usecs
);
1351 static int on_netns(char *nsname
, void *arg
)
1353 struct netns_func
*f
= arg
;
1355 if (netns_switch(nsname
))
1358 return f
->func(nsname
, f
->arg
);
1361 static int on_netns_label(char *nsname
, void *arg
)
1363 printf("\nnetns: %s\n", nsname
);
1364 return on_netns(nsname
, arg
);
1367 int do_each_netns(int (*func
)(char *nsname
, void *arg
), void *arg
,
1370 struct netns_func nsf
= { .func
= func
, .arg
= arg
};
1373 return netns_foreach(on_netns_label
, &nsf
);
1375 return netns_foreach(on_netns
, &nsf
);
1378 char *int_to_str(int val
, char *buf
)
1380 sprintf(buf
, "%d", val
);
1384 int get_guid(__u64
*guid
, const char *arg
)
1386 unsigned long int tmp
;
1390 #define GUID_STR_LEN 23
1391 /* Verify strict format: format string must be
1392 * xx:xx:xx:xx:xx:xx:xx:xx where xx can be an arbitrary
1396 if (strlen(arg
) != GUID_STR_LEN
)
1399 /* make sure columns are in place */
1400 for (i
= 0; i
< 7; i
++)
1401 if (arg
[2 + i
* 3] != ':')
1405 for (i
= 0; i
< 8; i
++) {
1406 tmp
= strtoul(arg
+ i
* 3, &endptr
, 16);
1407 if (endptr
!= arg
+ i
* 3 + 2)
1413 *guid
|= tmp
<< (56 - 8 * i
);
1419 /* This is a necessary workaround for multicast route dumps */
1420 int get_real_family(int rtm_type
, int rtm_family
)
1422 if (rtm_type
!= RTN_MULTICAST
)
1425 if (rtm_family
== RTNL_FAMILY_IPMR
)
1428 if (rtm_family
== RTNL_FAMILY_IP6MR
)
1434 /* Based on copy_rtnl_link_stats() from kernel at net/core/rtnetlink.c */
1435 static void copy_rtnl_link_stats64(struct rtnl_link_stats64
*stats64
,
1436 const struct rtnl_link_stats
*stats
)
1438 __u64
*a
= (__u64
*)stats64
;
1439 const __u32
*b
= (const __u32
*)stats
;
1440 const __u32
*e
= b
+ sizeof(*stats
) / sizeof(*b
);
1446 int get_rtnl_link_stats_rta(struct rtnl_link_stats64
*stats64
,
1447 struct rtattr
*tb
[])
1449 struct rtnl_link_stats stats
;
1454 if (tb
[IFLA_STATS64
]) {
1455 rta
= tb
[IFLA_STATS64
];
1456 size
= sizeof(struct rtnl_link_stats64
);
1458 } else if (tb
[IFLA_STATS
]) {
1459 rta
= tb
[IFLA_STATS
];
1460 size
= sizeof(struct rtnl_link_stats
);
1466 len
= RTA_PAYLOAD(rta
);
1468 memset(s
+ len
, 0, size
- len
);
1472 memcpy(s
, RTA_DATA(rta
), len
);
1475 copy_rtnl_link_stats64(stats64
, s
);
1480 size_t strlcpy(char *dst
, const char *src
, size_t size
)
1482 size_t srclen
= strlen(src
);
1485 size_t minlen
= min(srclen
, size
- 1);
1487 memcpy(dst
, src
, minlen
);
1493 size_t strlcat(char *dst
, const char *src
, size_t size
)
1495 size_t dlen
= strlen(dst
);
1498 return dlen
+ strlen(src
);
1500 return dlen
+ strlcpy(dst
+ dlen
, src
, size
- dlen
);