1
2#ifndef __UTILS_H__
3#define __UTILS_H__ 1
4
5#include <sys/types.h>
6#include <asm/types.h>
7#include <resolv.h>
8#include <stdlib.h>
9#include <stdbool.h>
10#include <time.h>
11
12#ifdef HAVE_LIBBSD
13#include <bsd/string.h>
14#endif
15
16#include "libnetlink.h"
17#include "ll_map.h"
18#include "rtm_map.h"
19#include "json_print.h"
20
21extern int preferred_family;
22extern int human_readable;
23extern int show_stats;
24extern int show_details;
25extern int show_raw;
26extern int resolve_hosts;
27extern int oneline;
28extern int brief;
29extern int json;
30extern int pretty;
31extern int timestamp;
32extern int timestamp_short;
33extern const char * _SL_;
34extern int max_flush_loops;
35extern int batch_mode;
36extern int numeric;
37extern bool do_all;
38
39#ifndef CONFDIR
40#define CONFDIR "/etc/iproute2"
41#endif
42
43#define SPRINT_BSIZE 64
44#define SPRINT_BUF(x) char x[SPRINT_BSIZE]
45
46void incomplete_command(void) __attribute__((noreturn));
47
48#define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
49#define NEXT_ARG_OK() (argc - 1 > 0)
50#define NEXT_ARG_FWD() do { argv++; argc--; } while(0)
51#define PREV_ARG() do { argv--; argc++; } while(0)
52
53#define TIME_UNITS_PER_SEC 1000000
54#define NSEC_PER_USEC 1000
55#define NSEC_PER_MSEC 1000000
56#define NSEC_PER_SEC 1000000000LL
57
58typedef struct
59{
60 __u16 flags;
61 __u16 bytelen;
62 __s16 bitlen;
63
64 __u16 family;
65 __u32 data[64];
66} inet_prefix;
67
68enum {
69 PREFIXLEN_SPECIFIED = (1 << 0),
70 ADDRTYPE_INET = (1 << 1),
71 ADDRTYPE_UNSPEC = (1 << 2),
72 ADDRTYPE_MULTI = (1 << 3),
73
74 ADDRTYPE_INET_UNSPEC = ADDRTYPE_INET | ADDRTYPE_UNSPEC,
75 ADDRTYPE_INET_MULTI = ADDRTYPE_INET | ADDRTYPE_MULTI
76};
77
78static inline void inet_prefix_reset(inet_prefix *p)
79{
80 p->flags = 0;
81}
82
83static inline bool is_addrtype_inet(const inet_prefix *p)
84{
85 return p->flags & ADDRTYPE_INET;
86}
87
88static inline bool is_addrtype_inet_unspec(const inet_prefix *p)
89{
90 return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET_UNSPEC;
91}
92
93static inline bool is_addrtype_inet_multi(const inet_prefix *p)
94{
95 return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET_MULTI;
96}
97
98static inline bool is_addrtype_inet_not_unspec(const inet_prefix *p)
99{
100 return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET;
101}
102
103static inline bool is_addrtype_inet_not_multi(const inet_prefix *p)
104{
105 return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET;
106}
107
108#define DN_MAXADDL 20
109#ifndef AF_DECnet
110#define AF_DECnet 12
111#endif
112
113struct dn_naddr
114{
115 unsigned short a_len;
116 unsigned char a_addr[DN_MAXADDL];
117};
118
119#ifndef AF_MPLS
120# define AF_MPLS 28
121#endif
122#ifndef IPPROTO_MPLS
123#define IPPROTO_MPLS 137
124#endif
125
126#ifndef CLOCK_TAI
127# define CLOCK_TAI 11
128#endif
129
130#ifndef AF_XDP
131# define AF_XDP 44
132# if AF_MAX < 45
133# undef AF_MAX
134# define AF_MAX 45
135# endif
136#endif
137
138__u32 get_addr32(const char *name);
139int get_addr_1(inet_prefix *dst, const char *arg, int family);
140int get_prefix_1(inet_prefix *dst, char *arg, int family);
141int get_addr(inet_prefix *dst, const char *arg, int family);
142int get_prefix(inet_prefix *dst, char *arg, int family);
143int mask2bits(__u32 netmask);
144int get_addr_rta(inet_prefix *dst, const struct rtattr *rta, int family);
145int get_addr_ila(__u64 *val, const char *arg);
146
147int read_prop(const char *dev, char *prop, long *value);
148int get_hex(char c);
149int get_integer(int *val, const char *arg, int base);
150int get_unsigned(unsigned *val, const char *arg, int base);
151int get_time_rtt(unsigned *val, const char *arg, int *raw);
152#define get_byte get_u8
153#define get_ushort get_u16
154#define get_short get_s16
155int get_s64(__s64 *val, const char *arg, int base);
156int get_u64(__u64 *val, const char *arg, int base);
157int get_u32(__u32 *val, const char *arg, int base);
158int get_s32(__s32 *val, const char *arg, int base);
159int get_u16(__u16 *val, const char *arg, int base);
160int get_u8(__u8 *val, const char *arg, int base);
161int get_be64(__be64 *val, const char *arg, int base);
162int get_be32(__be32 *val, const char *arg, int base);
163int get_be16(__be16 *val, const char *arg, int base);
164int get_addr64(__u64 *ap, const char *cp);
165int get_rate(unsigned int *rate, const char *str);
166int get_rate64(__u64 *rate, const char *str);
167int get_size(unsigned int *size, const char *str);
168
169int hex2mem(const char *buf, uint8_t *mem, int count);
170char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen);
171__u8 *hexstring_a2n(const char *str, __u8 *buf, int blen, unsigned int *len);
172#define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx")
173int addr64_n2a(__u64 addr, char *buff, size_t len);
174
175int af_bit_len(int af);
176
177const char *format_host_r(int af, int len, const void *addr,
178 char *buf, int buflen);
179#define format_host_rta_r(af, rta, buf, buflen) \
180 format_host_r(af, RTA_PAYLOAD(rta), RTA_DATA(rta), \
181 buf, buflen)
182
183const char *format_host(int af, int lne, const void *addr);
184#define format_host_rta(af, rta) \
185 format_host(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
186const char *rt_addr_n2a_r(int af, int len, const void *addr,
187 char *buf, int buflen);
188const char *rt_addr_n2a(int af, int len, const void *addr);
189#define rt_addr_n2a_rta(af, rta) \
190 rt_addr_n2a(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
191
192int read_family(const char *name);
193const char *family_name(int family);
194
195void missarg(const char *) __attribute__((noreturn));
196void invarg(const char *, const char *) __attribute__((noreturn));
197void duparg(const char *, const char *) __attribute__((noreturn));
198void duparg2(const char *, const char *) __attribute__((noreturn));
199int nodev(const char *dev);
200int check_ifname(const char *);
201int check_altifname(const char *name);
202int get_ifname(char *, const char *);
203const char *get_ifname_rta(int ifindex, const struct rtattr *rta);
204bool matches(const char *prefix, const char *string);
205int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits);
206int inet_addr_match_rta(const inet_prefix *m, const struct rtattr *rta);
207
208const char *mpls_ntop(int af, const void *addr, char *str, size_t len);
209int mpls_pton(int af, const char *src, void *addr, size_t alen);
210
211extern int __iproute2_hz_internal;
212int __get_hz(void);
213
214static __inline__ int get_hz(void)
215{
216 if (__iproute2_hz_internal == 0)
217 __iproute2_hz_internal = __get_hz();
218 return __iproute2_hz_internal;
219}
220
221extern int __iproute2_user_hz_internal;
222int __get_user_hz(void);
223
224static __inline__ int get_user_hz(void)
225{
226 if (__iproute2_user_hz_internal == 0)
227 __iproute2_user_hz_internal = __get_user_hz();
228 return __iproute2_user_hz_internal;
229}
230
231static inline __u32 nl_mgrp(__u32 group)
232{
233 if (group > 31 ) {
234 fprintf(stderr, "Use setsockopt for this group %d\n", group);
235 exit(-1);
236 }
237 return group ? (1 << (group - 1)) : 0;
238}
239
240
241static inline unsigned long __tv_to_jiffies(const struct timeval *tv)
242{
243 unsigned long long jif;
244
245 jif = 1000000ULL * tv->tv_sec + tv->tv_usec;
246
247 return jif/10000;
248}
249
250static inline void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
251{
252 unsigned long long tvusec;
253
254 tvusec = 10000ULL*jiffies;
255 tv->tv_sec = tvusec/1000000;
256 tv->tv_usec = tvusec - 1000000 * tv->tv_sec;
257}
258
259void print_escape_buf(const __u8 *buf, size_t len, const char *escape);
260
261int print_timestamp(FILE *fp);
262void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n);
263
264unsigned int print_name_and_link(const char *fmt,
265 const char *name, struct rtattr *tb[]);
266
267#define BIT(nr) (1UL << (nr))
268
269#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
270
271#define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
272
273#ifndef offsetof
274# define offsetof(type, member) ((size_t) &((type *)0)->member)
275#endif
276
277#ifndef min
278# define min(x, y) ({ \
279 typeof(x) _min1 = (x); \
280 typeof(y) _min2 = (y); \
281 (void) (&_min1 == &_min2); \
282 _min1 < _min2 ? _min1 : _min2; })
283#endif
284
285#ifndef __check_format_string
286# define __check_format_string(pos_str, pos_args) \
287 __attribute__ ((format (printf, (pos_str), (pos_args))))
288#endif
289
290#define _textify(x) #x
291#define textify(x) _textify(x)
292
293#define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
294#define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
295
296extern int cmdlineno;
297ssize_t getcmdline(char **line, size_t *len, FILE *in);
298int makeargs(char *line, char *argv[], int maxargs);
299
300char *int_to_str(int val, char *buf);
301int get_guid(__u64 *guid, const char *arg);
302int get_real_family(int rtm_type, int rtm_family);
303
304int cmd_exec(const char *cmd, char **argv, bool do_fork,
305 int (*setup)(void *), void *arg);
306int make_path(const char *path, mode_t mode);
307char *find_cgroup2_mount(bool do_mount);
308__u64 get_cgroup2_id(const char *path);
309char *get_cgroup2_path(__u64 id, bool full);
310int get_command_name(const char *pid, char *comm, size_t len);
311
312int get_rtnl_link_stats_rta(struct rtnl_link_stats64 *stats64,
313 struct rtattr *tb[]);
314
315#ifdef NEED_STRLCPY
316size_t strlcpy(char *dst, const char *src, size_t size);
317size_t strlcat(char *dst, const char *src, size_t size);
318#endif
319
320void drop_cap(void);
321
322int get_time(unsigned int *time, const char *str);
323int get_time64(__s64 *time, const char *str);
324char *sprint_time(__u32 time, char *buf);
325char *sprint_time64(__s64 time, char *buf);
326
327int do_batch(const char *name, bool force,
328 int (*cmd)(int argc, char *argv[], void *user), void *user);
329
330int parse_one_of(const char *msg, const char *realval, const char * const *list,
331 size_t len, int *p_err);
332bool parse_on_off(const char *msg, const char *realval, int *p_err);
333
334int parse_mapping(int *argcp, char ***argvp, bool allow_all,
335 int (*mapping_cb)(__u32 key, char *value, void *data),
336 void *mapping_cb_data);
337
338#endif
339
