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
);
990 struct sockaddr_in sin
;
991 struct sockaddr_in6 sin6
;
994 switch (sa
->sa
.sa_family
) {
996 return inet_ntop(AF_INET
, &sa
->sin
.sin_addr
,
999 return inet_ntop(AF_INET6
, &sa
->sin6
.sin6_addr
,
1010 const char *rt_addr_n2a(int af
, int len
, const void *addr
)
1012 static char buf
[256];
1014 return rt_addr_n2a_r(af
, len
, addr
, buf
, 256);
1017 int read_family(const char *name
)
1019 int family
= AF_UNSPEC
;
1021 if (strcmp(name
, "inet") == 0)
1023 else if (strcmp(name
, "inet6") == 0)
1025 else if (strcmp(name
, "dnet") == 0)
1027 else if (strcmp(name
, "link") == 0)
1029 else if (strcmp(name
, "ipx") == 0)
1031 else if (strcmp(name
, "mpls") == 0)
1033 else if (strcmp(name
, "bridge") == 0)
1038 const char *family_name(int family
)
1040 if (family
== AF_INET
)
1042 if (family
== AF_INET6
)
1044 if (family
== AF_DECnet
)
1046 if (family
== AF_PACKET
)
1048 if (family
== AF_IPX
)
1050 if (family
== AF_MPLS
)
1052 if (family
== AF_BRIDGE
)
1057 #ifdef RESOLVE_HOSTNAMES
1059 struct namerec
*next
;
1065 static struct namerec
*nht
[NHASH
];
1067 static const char *resolve_address(const void *addr
, int len
, int af
)
1070 struct hostent
*h_ent
;
1072 static int notfirst
;
1075 if (af
== AF_INET6
&& ((__u32
*)addr
)[0] == 0 &&
1076 ((__u32
*)addr
)[1] == 0 && ((__u32
*)addr
)[2] == htonl(0xffff)) {
1082 hash
= *(__u32
*)(addr
+ len
- 4) % NHASH
;
1084 for (n
= nht
[hash
]; n
; n
= n
->next
) {
1085 if (n
->addr
.family
== af
&&
1086 n
->addr
.bytelen
== len
&&
1087 memcmp(n
->addr
.data
, addr
, len
) == 0)
1090 n
= malloc(sizeof(*n
));
1093 n
->addr
.family
= af
;
1094 n
->addr
.bytelen
= len
;
1096 memcpy(n
->addr
.data
, addr
, len
);
1097 n
->next
= nht
[hash
];
1099 if (++notfirst
== 1)
1103 h_ent
= gethostbyaddr(addr
, len
, af
);
1105 n
->name
= strdup(h_ent
->h_name
);
1107 /* Even if we fail, "negative" entry is remembered. */
1112 const char *format_host_r(int af
, int len
, const void *addr
,
1113 char *buf
, int buflen
)
1115 #ifdef RESOLVE_HOSTNAMES
1116 if (resolve_hosts
) {
1119 len
= len
<= 0 ? af_byte_len(af
) : len
;
1122 (n
= resolve_address(addr
, len
, af
)) != NULL
)
1126 return rt_addr_n2a_r(af
, len
, addr
, buf
, buflen
);
1129 const char *format_host(int af
, int len
, const void *addr
)
1131 static char buf
[256];
1133 return format_host_r(af
, len
, addr
, buf
, 256);
1137 char *hexstring_n2a(const __u8
*str
, int len
, char *buf
, int blen
)
1142 for (i
= 0; i
< len
; i
++) {
1145 sprintf(ptr
, "%02x", str
[i
]);
1152 __u8
*hexstring_a2n(const char *str
, __u8
*buf
, int blen
, unsigned int *len
)
1154 unsigned int cnt
= 0;
1157 if (strlen(str
) % 2)
1159 while (cnt
< blen
&& strlen(str
) > 1) {
1163 strncpy(tmpstr
, str
, 2);
1166 tmp
= strtoul(tmpstr
, &endptr
, 16);
1167 if (errno
!= 0 || tmp
> 0xFF || *endptr
!= '\0')
1179 int hex2mem(const char *buf
, uint8_t *mem
, int count
)
1184 for (i
= 0, j
= 0; i
< count
; i
++, j
+= 2) {
1185 c
= get_hex(buf
[j
]);
1191 c
= get_hex(buf
[j
+ 1]);
1201 int addr64_n2a(__u64 addr
, char *buff
, size_t len
)
1203 __u16
*words
= (__u16
*)&addr
;
1209 for (i
= 0; i
< 4; i
++) {
1210 v
= ntohs(words
[i
]);
1215 ret
= snprintf(&buff
[written
], len
- written
, "%x%s", v
, sep
);
1225 /* Print buffer and escape bytes that are !isprint or among 'escape' */
1226 void print_escape_buf(const __u8
*buf
, size_t len
, const char *escape
)
1230 for (i
= 0; i
< len
; ++i
) {
1231 if (isprint(buf
[i
]) && buf
[i
] != '\\' &&
1232 !strchr(escape
, buf
[i
]))
1233 printf("%c", buf
[i
]);
1235 printf("\\%03o", buf
[i
]);
1239 int print_timestamp(FILE *fp
)
1244 gettimeofday(&tv
, NULL
);
1245 tm
= localtime(&tv
.tv_sec
);
1247 if (timestamp_short
) {
1250 strftime(tshort
, sizeof(tshort
), "%Y-%m-%dT%H:%M:%S", tm
);
1251 fprintf(fp
, "[%s.%06ld] ", tshort
, tv
.tv_usec
);
1253 char *tstr
= asctime(tm
);
1255 tstr
[strlen(tstr
)-1] = 0;
1256 fprintf(fp
, "Timestamp: %s %ld usec\n",
1265 /* Like glibc getline but handle continuation lines and comments */
1266 ssize_t
getcmdline(char **linep
, size_t *lenp
, FILE *in
)
1271 cc
= getline(linep
, lenp
, in
);
1273 return cc
; /* eof or error */
1276 cp
= strchr(*linep
, '#');
1280 while ((cp
= strstr(*linep
, "\\\n")) != NULL
) {
1285 cc1
= getline(&line1
, &len1
, in
);
1287 fprintf(stderr
, "Missing continuation line\n");
1294 cp
= strchr(line1
, '#');
1298 *lenp
= strlen(*linep
) + strlen(line1
) + 1;
1299 *linep
= realloc(*linep
, *lenp
);
1301 fprintf(stderr
, "Out of memory\n");
1306 strcat(*linep
, line1
);
1312 /* split command line into argument vector */
1313 int makeargs(char *line
, char *argv
[], int maxargs
)
1315 static const char ws
[] = " \t\r\n";
1320 /* skip leading whitespace */
1321 cp
+= strspn(cp
, ws
);
1326 if (argc
>= (maxargs
- 1)) {
1327 fprintf(stderr
, "Too many arguments to command\n");
1331 /* word begins with quote */
1332 if (*cp
== '\'' || *cp
== '"') {
1336 /* find ending quote */
1337 cp
= strchr(cp
, quote
);
1339 fprintf(stderr
, "Unterminated quoted string\n");
1345 /* find end of word */
1346 cp
+= strcspn(cp
, ws
);
1351 /* seperate words */
1359 void print_nlmsg_timestamp(FILE *fp
, const struct nlmsghdr
*n
)
1362 time_t secs
= ((__u32
*)NLMSG_DATA(n
))[0];
1363 long usecs
= ((__u32
*)NLMSG_DATA(n
))[1];
1365 tstr
= asctime(localtime(&secs
));
1366 tstr
[strlen(tstr
)-1] = 0;
1367 fprintf(fp
, "Timestamp: %s %lu us\n", tstr
, usecs
);
1370 static int on_netns(char *nsname
, void *arg
)
1372 struct netns_func
*f
= arg
;
1374 if (netns_switch(nsname
))
1377 return f
->func(nsname
, f
->arg
);
1380 static int on_netns_label(char *nsname
, void *arg
)
1382 printf("\nnetns: %s\n", nsname
);
1383 return on_netns(nsname
, arg
);
1386 int do_each_netns(int (*func
)(char *nsname
, void *arg
), void *arg
,
1389 struct netns_func nsf
= { .func
= func
, .arg
= arg
};
1392 return netns_foreach(on_netns_label
, &nsf
);
1394 return netns_foreach(on_netns
, &nsf
);
1397 char *int_to_str(int val
, char *buf
)
1399 sprintf(buf
, "%d", val
);
1403 int get_guid(__u64
*guid
, const char *arg
)
1405 unsigned long int tmp
;
1409 #define GUID_STR_LEN 23
1410 /* Verify strict format: format string must be
1411 * xx:xx:xx:xx:xx:xx:xx:xx where xx can be an arbitrary
1415 if (strlen(arg
) != GUID_STR_LEN
)
1418 /* make sure columns are in place */
1419 for (i
= 0; i
< 7; i
++)
1420 if (arg
[2 + i
* 3] != ':')
1424 for (i
= 0; i
< 8; i
++) {
1425 tmp
= strtoul(arg
+ i
* 3, &endptr
, 16);
1426 if (endptr
!= arg
+ i
* 3 + 2)
1432 *guid
|= tmp
<< (56 - 8 * i
);
1438 /* This is a necessary workaround for multicast route dumps */
1439 int get_real_family(int rtm_type
, int rtm_family
)
1441 if (rtm_type
!= RTN_MULTICAST
)
1444 if (rtm_family
== RTNL_FAMILY_IPMR
)
1447 if (rtm_family
== RTNL_FAMILY_IP6MR
)
1454 size_t strlcpy(char *dst
, const char *src
, size_t size
)
1456 size_t srclen
= strlen(src
);
1459 size_t minlen
= min(srclen
, size
- 1);
1461 memcpy(dst
, src
, minlen
);
1467 size_t strlcat(char *dst
, const char *src
, size_t size
)
1469 size_t dlen
= strlen(dst
);
1472 return dlen
+ strlen(src
);
1474 return dlen
+ strlcpy(dst
+ dlen
, src
, size
- dlen
);