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6054c1eb | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
aba5acdf SH |
2 | #ifndef __UTILS_H__ |
3 | #define __UTILS_H__ 1 | |
4 | ||
5bd9dd49 | 5 | #include <sys/types.h> |
aba5acdf SH |
6 | #include <asm/types.h> |
7 | #include <resolv.h> | |
56b94061 | 8 | #include <stdlib.h> |
e998e118 | 9 | #include <stdbool.h> |
05b3b344 | 10 | #include <time.h> |
aba5acdf | 11 | |
6d2fd4a5 LB |
12 | #ifdef HAVE_LIBBSD |
13 | #include <bsd/string.h> | |
14 | #endif | |
15 | ||
aba5acdf SH |
16 | #include "libnetlink.h" |
17 | #include "ll_map.h" | |
18 | #include "rtm_map.h" | |
f5b50a18 | 19 | #include "json_print.h" |
aba5acdf SH |
20 | |
21 | extern int preferred_family; | |
b68d9837 | 22 | extern int human_readable; |
1e264abc | 23 | extern int use_iec; |
aba5acdf SH |
24 | extern int show_stats; |
25 | extern int show_details; | |
26 | extern int show_raw; | |
27 | extern int resolve_hosts; | |
28 | extern int oneline; | |
5d295bb8 | 29 | extern int brief; |
5df60772 | 30 | extern int json; |
663c3cb2 | 31 | extern int pretty; |
90f93024 | 32 | extern int timestamp; |
79aa79d0 | 33 | extern int timestamp_short; |
ec7aff5c | 34 | extern const char * _SL_; |
64c79560 | 35 | extern int max_flush_loops; |
a3aa47a5 | 36 | extern int batch_mode; |
ca697cee | 37 | extern int numeric; |
b13ba03f | 38 | extern bool do_all; |
aba5acdf | 39 | |
f6793eec DB |
40 | #ifndef CONFDIR |
41 | #define CONFDIR "/etc/iproute2" | |
42 | #endif | |
43 | ||
aba5acdf SH |
44 | #define SPRINT_BSIZE 64 |
45 | #define SPRINT_BUF(x) char x[SPRINT_BSIZE] | |
46 | ||
892e2124 | 47 | void incomplete_command(void) __attribute__((noreturn)); |
aba5acdf SH |
48 | |
49 | #define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0) | |
c7699875 | 50 | #define NEXT_ARG_OK() (argc - 1 > 0) |
faa8a463 | 51 | #define NEXT_ARG_FWD() do { argv++; argc--; } while(0) |
c7699875 | 52 | #define PREV_ARG() do { argv--; argc++; } while(0) |
aba5acdf | 53 | |
abf70ef4 DT |
54 | #define TIME_UNITS_PER_SEC 1000000 |
55 | #define NSEC_PER_USEC 1000 | |
56 | #define NSEC_PER_MSEC 1000000 | |
57 | #define NSEC_PER_SEC 1000000000LL | |
58 | ||
aba5acdf SH |
59 | typedef struct |
60 | { | |
93ae2835 EB |
61 | __u16 flags; |
62 | __u16 bytelen; | |
aba5acdf | 63 | __s16 bitlen; |
93ae2835 EB |
64 | /* These next two fields match rtvia */ |
65 | __u16 family; | |
4af44716 | 66 | __u32 data[64]; |
aba5acdf SH |
67 | } inet_prefix; |
68 | ||
7bf5e876 SP |
69 | enum { |
70 | PREFIXLEN_SPECIFIED = (1 << 0), | |
71 | ADDRTYPE_INET = (1 << 1), | |
72 | ADDRTYPE_UNSPEC = (1 << 2), | |
73 | ADDRTYPE_MULTI = (1 << 3), | |
74 | ||
75 | ADDRTYPE_INET_UNSPEC = ADDRTYPE_INET | ADDRTYPE_UNSPEC, | |
76 | ADDRTYPE_INET_MULTI = ADDRTYPE_INET | ADDRTYPE_MULTI | |
77 | }; | |
78 | ||
9cc173d4 SP |
79 | static inline void inet_prefix_reset(inet_prefix *p) |
80 | { | |
81 | p->flags = 0; | |
82 | } | |
83 | ||
7bf5e876 SP |
84 | static inline bool is_addrtype_inet(const inet_prefix *p) |
85 | { | |
86 | return p->flags & ADDRTYPE_INET; | |
87 | } | |
88 | ||
89 | static inline bool is_addrtype_inet_unspec(const inet_prefix *p) | |
90 | { | |
91 | return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET_UNSPEC; | |
92 | } | |
93 | ||
94 | static inline bool is_addrtype_inet_multi(const inet_prefix *p) | |
95 | { | |
96 | return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET_MULTI; | |
97 | } | |
98 | ||
99 | static inline bool is_addrtype_inet_not_unspec(const inet_prefix *p) | |
100 | { | |
101 | return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET; | |
102 | } | |
103 | ||
104 | static inline bool is_addrtype_inet_not_multi(const inet_prefix *p) | |
105 | { | |
106 | return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET; | |
107 | } | |
f082b64f | 108 | |
aba5acdf SH |
109 | #define DN_MAXADDL 20 |
110 | #ifndef AF_DECnet | |
111 | #define AF_DECnet 12 | |
112 | #endif | |
113 | ||
ae665a52 | 114 | struct dn_naddr |
aba5acdf SH |
115 | { |
116 | unsigned short a_len; | |
117 | unsigned char a_addr[DN_MAXADDL]; | |
118 | }; | |
119 | ||
dacc5d41 EB |
120 | #ifndef AF_MPLS |
121 | # define AF_MPLS 28 | |
122 | #endif | |
f005b700 KJ |
123 | #ifndef IPPROTO_MPLS |
124 | #define IPPROTO_MPLS 137 | |
125 | #endif | |
dacc5d41 | 126 | |
f900a216 PK |
127 | #ifndef CLOCK_TAI |
128 | # define CLOCK_TAI 11 | |
129 | #endif | |
130 | ||
2abc3d76 BT |
131 | #ifndef AF_XDP |
132 | # define AF_XDP 44 | |
133 | # if AF_MAX < 45 | |
134 | # undef AF_MAX | |
135 | # define AF_MAX 45 | |
136 | # endif | |
137 | #endif | |
138 | ||
892e2124 SH |
139 | __u32 get_addr32(const char *name); |
140 | int get_addr_1(inet_prefix *dst, const char *arg, int family); | |
141 | int get_prefix_1(inet_prefix *dst, char *arg, int family); | |
142 | int get_addr(inet_prefix *dst, const char *arg, int family); | |
143 | int get_prefix(inet_prefix *dst, char *arg, int family); | |
144 | int mask2bits(__u32 netmask); | |
27c523e2 | 145 | int get_addr_rta(inet_prefix *dst, const struct rtattr *rta, int family); |
5866bddd | 146 | int get_addr_ila(__u64 *val, const char *arg); |
aba5acdf | 147 | |
927e3cfb | 148 | int read_prop(const char *dev, char *prop, long *value); |
609640f5 | 149 | int get_hex(char c); |
892e2124 SH |
150 | int get_integer(int *val, const char *arg, int base); |
151 | int get_unsigned(unsigned *val, const char *arg, int base); | |
152 | int get_time_rtt(unsigned *val, const char *arg, int *raw); | |
aba5acdf SH |
153 | #define get_byte get_u8 |
154 | #define get_ushort get_u16 | |
155 | #define get_short get_s16 | |
a066bac8 | 156 | int get_s64(__s64 *val, const char *arg, int base); |
892e2124 SH |
157 | int get_u64(__u64 *val, const char *arg, int base); |
158 | int get_u32(__u32 *val, const char *arg, int base); | |
159 | int get_s32(__s32 *val, const char *arg, int base); | |
160 | int get_u16(__u16 *val, const char *arg, int base); | |
892e2124 | 161 | int get_u8(__u8 *val, const char *arg, int base); |
9f7401fa SD |
162 | int get_be64(__be64 *val, const char *arg, int base); |
163 | int get_be32(__be32 *val, const char *arg, int base); | |
164 | int get_be16(__be16 *val, const char *arg, int base); | |
5866bddd | 165 | int get_addr64(__u64 *ap, const char *cp); |
aba5acdf | 166 | |
1c570c50 | 167 | int hex2mem(const char *buf, uint8_t *mem, int count); |
89ae5020 SD |
168 | char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen); |
169 | __u8 *hexstring_a2n(const char *str, __u8 *buf, int blen, unsigned int *len); | |
5866bddd TH |
170 | #define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx") |
171 | int addr64_n2a(__u64 addr, char *buff, size_t len); | |
aba5acdf | 172 | |
892e2124 | 173 | int af_bit_len(int af); |
f3a2ddc1 | 174 | |
a418e451 | 175 | const char *format_host_r(int af, int len, const void *addr, |
04457b3d | 176 | char *buf, int buflen); |
663c3cb2 SH |
177 | #define format_host_rta_r(af, rta, buf, buflen) \ |
178 | format_host_r(af, RTA_PAYLOAD(rta), RTA_DATA(rta), \ | |
179 | buf, buflen) | |
180 | ||
a418e451 | 181 | const char *format_host(int af, int lne, const void *addr); |
d49f934c PS |
182 | #define format_host_rta(af, rta) \ |
183 | format_host(af, RTA_PAYLOAD(rta), RTA_DATA(rta)) | |
2e96d2cc | 184 | const char *rt_addr_n2a_r(int af, int len, const void *addr, |
04457b3d | 185 | char *buf, int buflen); |
2e96d2cc | 186 | const char *rt_addr_n2a(int af, int len, const void *addr); |
7faf1588 PS |
187 | #define rt_addr_n2a_rta(af, rta) \ |
188 | rt_addr_n2a(af, RTA_PAYLOAD(rta), RTA_DATA(rta)) | |
aba5acdf | 189 | |
892e2124 SH |
190 | int read_family(const char *name); |
191 | const char *family_name(int family); | |
45c90d19 | 192 | |
c7699875 | 193 | void missarg(const char *) __attribute__((noreturn)); |
04457b3d SH |
194 | void invarg(const char *, const char *) __attribute__((noreturn)); |
195 | void duparg(const char *, const char *) __attribute__((noreturn)); | |
196 | void duparg2(const char *, const char *) __attribute__((noreturn)); | |
fe99adbc | 197 | int nodev(const char *dev); |
625df645 | 198 | int check_ifname(const char *); |
3aa0e51b | 199 | int check_altifname(const char *name); |
625df645 | 200 | int get_ifname(char *, const char *); |
fcac9665 | 201 | const char *get_ifname_rta(int ifindex, const struct rtattr *rta); |
1f420318 | 202 | bool matches(const char *prefix, const char *string); |
892e2124 | 203 | int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits); |
27c523e2 | 204 | int inet_addr_match_rta(const inet_prefix *m, const struct rtattr *rta); |
aba5acdf | 205 | |
dacc5d41 | 206 | const char *mpls_ntop(int af, const void *addr, char *str, size_t len); |
4af44716 | 207 | int mpls_pton(int af, const char *src, void *addr, size_t alen); |
dacc5d41 | 208 | |
aba5acdf | 209 | extern int __iproute2_hz_internal; |
e3c27c2d | 210 | int __get_hz(void); |
aba5acdf SH |
211 | |
212 | static __inline__ int get_hz(void) | |
213 | { | |
214 | if (__iproute2_hz_internal == 0) | |
215 | __iproute2_hz_internal = __get_hz(); | |
216 | return __iproute2_hz_internal; | |
217 | } | |
218 | ||
5e8bc631 | 219 | extern int __iproute2_user_hz_internal; |
892e2124 | 220 | int __get_user_hz(void); |
5e8bc631 | 221 | |
222 | static __inline__ int get_user_hz(void) | |
223 | { | |
224 | if (__iproute2_user_hz_internal == 0) | |
225 | __iproute2_user_hz_internal = __get_user_hz(); | |
226 | return __iproute2_user_hz_internal; | |
227 | } | |
228 | ||
8cd09e61 | 229 | static inline __u32 nl_mgrp(__u32 group) |
230 | { | |
56b94061 | 231 | if (group > 31 ) { |
232 | fprintf(stderr, "Use setsockopt for this group %d\n", group); | |
233 | exit(-1); | |
234 | } | |
235 | return group ? (1 << (group - 1)) : 0; | |
8cd09e61 | 236 | } |
237 | ||
8c0f7a16 NA |
238 | /* courtesy of bridge-utils */ |
239 | static inline unsigned long __tv_to_jiffies(const struct timeval *tv) | |
240 | { | |
241 | unsigned long long jif; | |
242 | ||
243 | jif = 1000000ULL * tv->tv_sec + tv->tv_usec; | |
244 | ||
245 | return jif/10000; | |
246 | } | |
247 | ||
248 | static inline void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies) | |
249 | { | |
250 | unsigned long long tvusec; | |
251 | ||
252 | tvusec = 10000ULL*jiffies; | |
253 | tv->tv_sec = tvusec/1000000; | |
254 | tv->tv_usec = tvusec - 1000000 * tv->tv_sec; | |
255 | } | |
8cd09e61 | 256 | |
7c72df5a ID |
257 | void print_escape_buf(const __u8 *buf, size_t len, const char *escape); |
258 | ||
90f93024 | 259 | int print_timestamp(FILE *fp); |
ddb1129b | 260 | void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n); |
90f93024 | 261 | |
4328b687 | 262 | unsigned int print_name_and_link(const char *fmt, |
f5b50a18 SP |
263 | const char *name, struct rtattr *tb[]); |
264 | ||
afdc1194 LR |
265 | #define BIT(nr) (1UL << (nr)) |
266 | ||
02d2ae55 SH |
267 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
268 | ||
6256f8c9 DB |
269 | #define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)])) |
270 | ||
271 | #ifndef offsetof | |
272 | # define offsetof(type, member) ((size_t) &((type *)0)->member) | |
273 | #endif | |
274 | ||
275 | #ifndef min | |
276 | # define min(x, y) ({ \ | |
277 | typeof(x) _min1 = (x); \ | |
278 | typeof(y) _min2 = (y); \ | |
279 | (void) (&_min1 == &_min2); \ | |
280 | _min1 < _min2 ? _min1 : _min2; }) | |
281 | #endif | |
282 | ||
11c39b5e DB |
283 | #ifndef __check_format_string |
284 | # define __check_format_string(pos_str, pos_args) \ | |
285 | __attribute__ ((format (printf, (pos_str), (pos_args)))) | |
286 | #endif | |
287 | ||
32e93fb7 DB |
288 | #define _textify(x) #x |
289 | #define textify(x) _textify(x) | |
290 | ||
1e529305 RP |
291 | #define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32)) |
292 | #define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32)) | |
293 | ||
351efcde | 294 | extern int cmdlineno; |
892e2124 SH |
295 | ssize_t getcmdline(char **line, size_t *len, FILE *in); |
296 | int makeargs(char *line, char *argv[], int maxargs); | |
351efcde | 297 | |
b217df10 | 298 | char *int_to_str(int val, char *buf); |
d91fb3f4 | 299 | int get_guid(__u64 *guid, const char *arg); |
56e3eb4c | 300 | int get_real_family(int rtm_type, int rtm_family); |
b217df10 | 301 | |
903818fb MC |
302 | int cmd_exec(const char *cmd, char **argv, bool do_fork, |
303 | int (*setup)(void *), void *arg); | |
1dafceb1 | 304 | int make_path(const char *path, mode_t mode); |
d5e6ee0d DY |
305 | char *find_cgroup2_mount(bool do_mount); |
306 | __u64 get_cgroup2_id(const char *path); | |
307 | char *get_cgroup2_path(__u64 id, bool full); | |
f443565f | 308 | int get_command_name(const char *pid, char *comm, size_t len); |
08bd33d7 | 309 | |
9a7bd544 SP |
310 | int get_rtnl_link_stats_rta(struct rtnl_link_stats64 *stats64, |
311 | struct rtattr *tb[]); | |
312 | ||
05b3b344 | 313 | #ifdef NEED_STRLCPY |
8d15e012 PS |
314 | size_t strlcpy(char *dst, const char *src, size_t size); |
315 | size_t strlcat(char *dst, const char *src, size_t size); | |
05b3b344 | 316 | #endif |
8d15e012 | 317 | |
ba2fc55b LB |
318 | void drop_cap(void); |
319 | ||
abf70ef4 DT |
320 | int get_time(unsigned int *time, const char *str); |
321 | int get_time64(__s64 *time, const char *str); | |
abf70ef4 DT |
322 | char *sprint_time(__u32 time, char *buf); |
323 | char *sprint_time64(__s64 time, char *buf); | |
324 | ||
aba5acdf | 325 | #endif /* __UTILS_H__ */ |