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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 SH |
11 | |
12 | #include "libnetlink.h" | |
13 | #include "ll_map.h" | |
14 | #include "rtm_map.h" | |
15 | ||
16 | extern int preferred_family; | |
b68d9837 | 17 | extern int human_readable; |
1e264abc | 18 | extern int use_iec; |
aba5acdf SH |
19 | extern int show_stats; |
20 | extern int show_details; | |
21 | extern int show_raw; | |
22 | extern int resolve_hosts; | |
23 | extern int oneline; | |
5d295bb8 | 24 | extern int brief; |
5df60772 | 25 | extern int json; |
90f93024 | 26 | extern int timestamp; |
79aa79d0 | 27 | extern int timestamp_short; |
ec7aff5c | 28 | extern const char * _SL_; |
64c79560 | 29 | extern int max_flush_loops; |
a3aa47a5 | 30 | extern int batch_mode; |
b13ba03f | 31 | extern bool do_all; |
aba5acdf | 32 | |
f6793eec DB |
33 | #ifndef CONFDIR |
34 | #define CONFDIR "/etc/iproute2" | |
35 | #endif | |
36 | ||
aba5acdf SH |
37 | #define SPRINT_BSIZE 64 |
38 | #define SPRINT_BUF(x) char x[SPRINT_BSIZE] | |
39 | ||
892e2124 | 40 | void incomplete_command(void) __attribute__((noreturn)); |
aba5acdf SH |
41 | |
42 | #define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0) | |
c7699875 | 43 | #define NEXT_ARG_OK() (argc - 1 > 0) |
faa8a463 | 44 | #define NEXT_ARG_FWD() do { argv++; argc--; } while(0) |
c7699875 | 45 | #define PREV_ARG() do { argv--; argc++; } while(0) |
aba5acdf SH |
46 | |
47 | typedef struct | |
48 | { | |
93ae2835 EB |
49 | __u16 flags; |
50 | __u16 bytelen; | |
aba5acdf | 51 | __s16 bitlen; |
93ae2835 EB |
52 | /* These next two fields match rtvia */ |
53 | __u16 family; | |
4af44716 | 54 | __u32 data[64]; |
aba5acdf SH |
55 | } inet_prefix; |
56 | ||
7bf5e876 SP |
57 | enum { |
58 | PREFIXLEN_SPECIFIED = (1 << 0), | |
59 | ADDRTYPE_INET = (1 << 1), | |
60 | ADDRTYPE_UNSPEC = (1 << 2), | |
61 | ADDRTYPE_MULTI = (1 << 3), | |
62 | ||
63 | ADDRTYPE_INET_UNSPEC = ADDRTYPE_INET | ADDRTYPE_UNSPEC, | |
64 | ADDRTYPE_INET_MULTI = ADDRTYPE_INET | ADDRTYPE_MULTI | |
65 | }; | |
66 | ||
67 | static inline bool is_addrtype_inet(const inet_prefix *p) | |
68 | { | |
69 | return p->flags & ADDRTYPE_INET; | |
70 | } | |
71 | ||
72 | static inline bool is_addrtype_inet_unspec(const inet_prefix *p) | |
73 | { | |
74 | return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET_UNSPEC; | |
75 | } | |
76 | ||
77 | static inline bool is_addrtype_inet_multi(const inet_prefix *p) | |
78 | { | |
79 | return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET_MULTI; | |
80 | } | |
81 | ||
82 | static inline bool is_addrtype_inet_not_unspec(const inet_prefix *p) | |
83 | { | |
84 | return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET; | |
85 | } | |
86 | ||
87 | static inline bool is_addrtype_inet_not_multi(const inet_prefix *p) | |
88 | { | |
89 | return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET; | |
90 | } | |
f082b64f | 91 | |
aba5acdf SH |
92 | #define DN_MAXADDL 20 |
93 | #ifndef AF_DECnet | |
94 | #define AF_DECnet 12 | |
95 | #endif | |
96 | ||
ae665a52 | 97 | struct dn_naddr |
aba5acdf SH |
98 | { |
99 | unsigned short a_len; | |
100 | unsigned char a_addr[DN_MAXADDL]; | |
101 | }; | |
102 | ||
103 | #define IPX_NODE_LEN 6 | |
104 | ||
105 | struct ipx_addr { | |
106 | u_int32_t ipx_net; | |
107 | u_int8_t ipx_node[IPX_NODE_LEN]; | |
108 | }; | |
109 | ||
dacc5d41 EB |
110 | #ifndef AF_MPLS |
111 | # define AF_MPLS 28 | |
112 | #endif | |
f005b700 KJ |
113 | #ifndef IPPROTO_MPLS |
114 | #define IPPROTO_MPLS 137 | |
115 | #endif | |
dacc5d41 | 116 | |
892e2124 SH |
117 | __u32 get_addr32(const char *name); |
118 | int get_addr_1(inet_prefix *dst, const char *arg, int family); | |
119 | int get_prefix_1(inet_prefix *dst, char *arg, int family); | |
120 | int get_addr(inet_prefix *dst, const char *arg, int family); | |
121 | int get_prefix(inet_prefix *dst, char *arg, int family); | |
122 | int mask2bits(__u32 netmask); | |
27c523e2 | 123 | int get_addr_rta(inet_prefix *dst, const struct rtattr *rta, int family); |
5866bddd | 124 | int get_addr_ila(__u64 *val, const char *arg); |
aba5acdf | 125 | |
927e3cfb ND |
126 | int read_prop(const char *dev, char *prop, long *value); |
127 | int parse_percent(double *val, const char *str); | |
609640f5 | 128 | int get_hex(char c); |
892e2124 SH |
129 | int get_integer(int *val, const char *arg, int base); |
130 | int get_unsigned(unsigned *val, const char *arg, int base); | |
131 | int get_time_rtt(unsigned *val, const char *arg, int *raw); | |
aba5acdf SH |
132 | #define get_byte get_u8 |
133 | #define get_ushort get_u16 | |
134 | #define get_short get_s16 | |
892e2124 SH |
135 | int get_u64(__u64 *val, const char *arg, int base); |
136 | int get_u32(__u32 *val, const char *arg, int base); | |
137 | int get_s32(__s32 *val, const char *arg, int base); | |
138 | int get_u16(__u16 *val, const char *arg, int base); | |
139 | int get_s16(__s16 *val, const char *arg, int base); | |
140 | int get_u8(__u8 *val, const char *arg, int base); | |
141 | int get_s8(__s8 *val, const char *arg, int base); | |
9f7401fa SD |
142 | int get_be64(__be64 *val, const char *arg, int base); |
143 | int get_be32(__be32 *val, const char *arg, int base); | |
144 | int get_be16(__be16 *val, const char *arg, int base); | |
5866bddd | 145 | int get_addr64(__u64 *ap, const char *cp); |
aba5acdf | 146 | |
1c570c50 | 147 | int hex2mem(const char *buf, uint8_t *mem, int count); |
89ae5020 SD |
148 | char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen); |
149 | __u8 *hexstring_a2n(const char *str, __u8 *buf, int blen, unsigned int *len); | |
5866bddd TH |
150 | #define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx") |
151 | int addr64_n2a(__u64 addr, char *buff, size_t len); | |
aba5acdf | 152 | |
892e2124 SH |
153 | int af_bit_len(int af); |
154 | int af_byte_len(int af); | |
f3a2ddc1 | 155 | |
a418e451 | 156 | const char *format_host_r(int af, int len, const void *addr, |
04457b3d | 157 | char *buf, int buflen); |
a418e451 | 158 | const char *format_host(int af, int lne, const void *addr); |
d49f934c PS |
159 | #define format_host_rta(af, rta) \ |
160 | format_host(af, RTA_PAYLOAD(rta), RTA_DATA(rta)) | |
2e96d2cc | 161 | const char *rt_addr_n2a_r(int af, int len, const void *addr, |
04457b3d | 162 | char *buf, int buflen); |
2e96d2cc | 163 | const char *rt_addr_n2a(int af, int len, const void *addr); |
7faf1588 PS |
164 | #define rt_addr_n2a_rta(af, rta) \ |
165 | rt_addr_n2a(af, RTA_PAYLOAD(rta), RTA_DATA(rta)) | |
aba5acdf | 166 | |
892e2124 SH |
167 | int read_family(const char *name); |
168 | const char *family_name(int family); | |
45c90d19 | 169 | |
c7699875 | 170 | void missarg(const char *) __attribute__((noreturn)); |
04457b3d SH |
171 | void invarg(const char *, const char *) __attribute__((noreturn)); |
172 | void duparg(const char *, const char *) __attribute__((noreturn)); | |
173 | void duparg2(const char *, const char *) __attribute__((noreturn)); | |
625df645 PS |
174 | int check_ifname(const char *); |
175 | int get_ifname(char *, const char *); | |
04457b3d | 176 | int matches(const char *arg, const char *pattern); |
892e2124 | 177 | int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits); |
27c523e2 | 178 | int inet_addr_match_rta(const inet_prefix *m, const struct rtattr *rta); |
aba5acdf SH |
179 | |
180 | const char *dnet_ntop(int af, const void *addr, char *str, size_t len); | |
181 | int dnet_pton(int af, const char *src, void *addr); | |
182 | ||
183 | const char *ipx_ntop(int af, const void *addr, char *str, size_t len); | |
184 | int ipx_pton(int af, const char *src, void *addr); | |
185 | ||
dacc5d41 | 186 | const char *mpls_ntop(int af, const void *addr, char *str, size_t len); |
4af44716 | 187 | int mpls_pton(int af, const char *src, void *addr, size_t alen); |
dacc5d41 | 188 | |
aba5acdf | 189 | extern int __iproute2_hz_internal; |
e3c27c2d | 190 | int __get_hz(void); |
aba5acdf SH |
191 | |
192 | static __inline__ int get_hz(void) | |
193 | { | |
194 | if (__iproute2_hz_internal == 0) | |
195 | __iproute2_hz_internal = __get_hz(); | |
196 | return __iproute2_hz_internal; | |
197 | } | |
198 | ||
5e8bc631 | 199 | extern int __iproute2_user_hz_internal; |
892e2124 | 200 | int __get_user_hz(void); |
5e8bc631 | 201 | |
202 | static __inline__ int get_user_hz(void) | |
203 | { | |
204 | if (__iproute2_user_hz_internal == 0) | |
205 | __iproute2_user_hz_internal = __get_user_hz(); | |
206 | return __iproute2_user_hz_internal; | |
207 | } | |
208 | ||
8cd09e61 | 209 | static inline __u32 nl_mgrp(__u32 group) |
210 | { | |
56b94061 | 211 | if (group > 31 ) { |
212 | fprintf(stderr, "Use setsockopt for this group %d\n", group); | |
213 | exit(-1); | |
214 | } | |
215 | return group ? (1 << (group - 1)) : 0; | |
8cd09e61 | 216 | } |
217 | ||
8c0f7a16 NA |
218 | /* courtesy of bridge-utils */ |
219 | static inline unsigned long __tv_to_jiffies(const struct timeval *tv) | |
220 | { | |
221 | unsigned long long jif; | |
222 | ||
223 | jif = 1000000ULL * tv->tv_sec + tv->tv_usec; | |
224 | ||
225 | return jif/10000; | |
226 | } | |
227 | ||
228 | static inline void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies) | |
229 | { | |
230 | unsigned long long tvusec; | |
231 | ||
232 | tvusec = 10000ULL*jiffies; | |
233 | tv->tv_sec = tvusec/1000000; | |
234 | tv->tv_usec = tvusec - 1000000 * tv->tv_sec; | |
235 | } | |
8cd09e61 | 236 | |
7c72df5a ID |
237 | void print_escape_buf(const __u8 *buf, size_t len, const char *escape); |
238 | ||
90f93024 | 239 | int print_timestamp(FILE *fp); |
ddb1129b | 240 | void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n); |
90f93024 | 241 | |
afdc1194 LR |
242 | #define BIT(nr) (1UL << (nr)) |
243 | ||
02d2ae55 SH |
244 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
245 | ||
6256f8c9 DB |
246 | #define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)])) |
247 | ||
248 | #ifndef offsetof | |
249 | # define offsetof(type, member) ((size_t) &((type *)0)->member) | |
250 | #endif | |
251 | ||
252 | #ifndef min | |
253 | # define min(x, y) ({ \ | |
254 | typeof(x) _min1 = (x); \ | |
255 | typeof(y) _min2 = (y); \ | |
256 | (void) (&_min1 == &_min2); \ | |
257 | _min1 < _min2 ? _min1 : _min2; }) | |
258 | #endif | |
259 | ||
11c39b5e DB |
260 | #ifndef __check_format_string |
261 | # define __check_format_string(pos_str, pos_args) \ | |
262 | __attribute__ ((format (printf, (pos_str), (pos_args)))) | |
263 | #endif | |
264 | ||
32e93fb7 DB |
265 | #define _textify(x) #x |
266 | #define textify(x) _textify(x) | |
267 | ||
1e529305 RP |
268 | #define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32)) |
269 | #define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32)) | |
270 | ||
351efcde | 271 | extern int cmdlineno; |
892e2124 SH |
272 | ssize_t getcmdline(char **line, size_t *len, FILE *in); |
273 | int makeargs(char *line, char *argv[], int maxargs); | |
351efcde | 274 | |
c7272ca7 DB |
275 | struct iplink_req { |
276 | struct nlmsghdr n; | |
277 | struct ifinfomsg i; | |
278 | char buf[1024]; | |
279 | }; | |
280 | ||
909dfe2c | 281 | int iplink_parse(int argc, char **argv, struct iplink_req *req, |
db02608b | 282 | char **name, char **type, char **link, char **dev, |
5e25cf77 | 283 | int *group, int *index); |
ddb1129b | 284 | |
892e2124 | 285 | int do_each_netns(int (*func)(char *nsname, void *arg), void *arg, |
e998e118 VK |
286 | bool show_label); |
287 | ||
b217df10 | 288 | char *int_to_str(int val, char *buf); |
d91fb3f4 | 289 | int get_guid(__u64 *guid, const char *arg); |
56e3eb4c | 290 | int get_real_family(int rtm_type, int rtm_family); |
b217df10 | 291 | |
08bd33d7 | 292 | int cmd_exec(const char *cmd, char **argv, bool do_fork); |
1dafceb1 DA |
293 | int make_path(const char *path, mode_t mode); |
294 | char *find_cgroup2_mount(void); | |
f443565f | 295 | int get_command_name(const char *pid, char *comm, size_t len); |
08bd33d7 | 296 | |
05b3b344 | 297 | #ifdef NEED_STRLCPY |
8d15e012 PS |
298 | size_t strlcpy(char *dst, const char *src, size_t size); |
299 | size_t strlcat(char *dst, const char *src, size_t size); | |
05b3b344 | 300 | #endif |
8d15e012 | 301 | |
ba2fc55b LB |
302 | void drop_cap(void); |
303 | ||
aba5acdf | 304 | #endif /* __UTILS_H__ */ |