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#include <stdint.h>
12
13#ifdef HAVE_LIBBSD
14#include <bsd/string.h>
15#endif
16
17#include "libnetlink.h"
18#include "ll_map.h"
19#include "rtm_map.h"
20#include "json_print.h"
21
22extern int preferred_family;
23extern int human_readable;
24extern int show_stats;
25extern int show_details;
26extern int show_raw;
27extern int resolve_hosts;
28extern int oneline;
29extern int brief;
30extern int json;
31extern int pretty;
32extern int timestamp;
33extern int timestamp_short;
34extern const char * _SL_;
35extern int max_flush_loops;
36extern int batch_mode;
37extern int numeric;
38extern bool do_all;
39
40#ifndef CONFDIR
41#define CONFDIR "/etc/iproute2"
42#endif
43
44#define SPRINT_BSIZE 64
45#define SPRINT_BUF(x) char x[SPRINT_BSIZE]
46
47void incomplete_command(void) __attribute__((noreturn));
48
49#define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
50#define NEXT_ARG_OK() (argc - 1 > 0)
51#define NEXT_ARG_FWD() do { argv++; argc--; } while(0)
52#define PREV_ARG() do { argv--; argc++; } while(0)
53
54
55#define MAX_ARGS 512
56
57#define TIME_UNITS_PER_SEC 1000000
58#define NSEC_PER_USEC 1000
59#define NSEC_PER_MSEC 1000000
60#define NSEC_PER_SEC 1000000000LL
61
62typedef struct
63{
64 __u16 flags;
65 __u16 bytelen;
66 __s16 bitlen;
67
68 __u16 family;
69 __u32 data[64];
70} inet_prefix;
71
72enum {
73 PREFIXLEN_SPECIFIED = (1 << 0),
74 ADDRTYPE_INET = (1 << 1),
75 ADDRTYPE_UNSPEC = (1 << 2),
76 ADDRTYPE_MULTI = (1 << 3),
77
78 ADDRTYPE_INET_UNSPEC = ADDRTYPE_INET | ADDRTYPE_UNSPEC,
79 ADDRTYPE_INET_MULTI = ADDRTYPE_INET | ADDRTYPE_MULTI
80};
81
82static inline void inet_prefix_reset(inet_prefix *p)
83{
84 p->flags = 0;
85}
86
87static inline bool is_addrtype_inet(const inet_prefix *p)
88{
89 return p->flags & ADDRTYPE_INET;
90}
91
92static inline bool is_addrtype_inet_unspec(const inet_prefix *p)
93{
94 return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET_UNSPEC;
95}
96
97static inline bool is_addrtype_inet_multi(const inet_prefix *p)
98{
99 return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET_MULTI;
100}
101
102static inline bool is_addrtype_inet_not_unspec(const inet_prefix *p)
103{
104 return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET;
105}
106
107static inline bool is_addrtype_inet_not_multi(const inet_prefix *p)
108{
109 return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET;
110}
111
112#ifndef AF_MPLS
113# define AF_MPLS 28
114#endif
115#ifndef IPPROTO_MPLS
116#define IPPROTO_MPLS 137
117#endif
118
119#ifndef CLOCK_TAI
120# define CLOCK_TAI 11
121#endif
122
123#ifndef AF_XDP
124# define AF_XDP 44
125# if AF_MAX < 45
126# undef AF_MAX
127# define AF_MAX 45
128# endif
129#endif
130
131__u32 get_addr32(const char *name);
132int get_addr_1(inet_prefix *dst, const char *arg, int family);
133int get_prefix_1(inet_prefix *dst, char *arg, int family);
134int get_addr(inet_prefix *dst, const char *arg, int family);
135int get_prefix(inet_prefix *dst, char *arg, int family);
136int mask2bits(__u32 netmask);
137int get_addr_rta(inet_prefix *dst, const struct rtattr *rta, int family);
138int get_addr_ila(__u64 *val, const char *arg);
139
140int read_prop(const char *dev, char *prop, long *value);
141int get_hex(char c);
142int get_integer(int *val, const char *arg, int base);
143int get_unsigned(unsigned *val, const char *arg, int base);
144int get_time_rtt(unsigned *val, const char *arg, int *raw);
145#define get_byte get_u8
146#define get_ushort get_u16
147#define get_short get_s16
148int get_s64(__s64 *val, const char *arg, int base);
149int get_u64(__u64 *val, const char *arg, int base);
150int get_u32(__u32 *val, const char *arg, int base);
151int get_s32(__s32 *val, const char *arg, int base);
152int get_u16(__u16 *val, const char *arg, int base);
153int get_u8(__u8 *val, const char *arg, int base);
154int get_be64(__be64 *val, const char *arg, int base);
155int get_be32(__be32 *val, const char *arg, int base);
156int get_be16(__be16 *val, const char *arg, int base);
157int get_addr64(__u64 *ap, const char *cp);
158int get_rate(unsigned int *rate, const char *str);
159int get_rate64(__u64 *rate, const char *str);
160int get_size(unsigned int *size, const char *str);
161
162int hex2mem(const char *buf, uint8_t *mem, int count);
163char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen);
164__u8 *hexstring_a2n(const char *str, __u8 *buf, int blen, unsigned int *len);
165#define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx")
166int addr64_n2a(__u64 addr, char *buff, size_t len);
167
168int af_bit_len(int af);
169
170const char *format_host_r(int af, int len, const void *addr,
171 char *buf, int buflen);
172#define format_host_rta_r(af, rta, buf, buflen) \
173 format_host_r(af, RTA_PAYLOAD(rta), RTA_DATA(rta), \
174 buf, buflen)
175
176const char *format_host(int af, int lne, const void *addr);
177#define format_host_rta(af, rta) \
178 format_host(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
179const char *rt_addr_n2a_r(int af, int len, const void *addr,
180 char *buf, int buflen);
181const char *rt_addr_n2a(int af, int len, const void *addr);
182#define rt_addr_n2a_rta(af, rta) \
183 rt_addr_n2a(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
184
185int read_family(const char *name);
186const char *family_name(int family);
187
188void missarg(const char *) __attribute__((noreturn));
189void invarg(const char *, const char *) __attribute__((noreturn));
190void duparg(const char *, const char *) __attribute__((noreturn));
191void duparg2(const char *, const char *) __attribute__((noreturn));
192int nodev(const char *dev);
193int check_ifname(const char *);
194int check_altifname(const char *name);
195int get_ifname(char *, const char *);
196const char *get_ifname_rta(int ifindex, const struct rtattr *rta);
197bool matches(const char *prefix, const char *string);
198int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits);
199int inet_addr_match_rta(const inet_prefix *m, const struct rtattr *rta);
200
201const char *ax25_ntop(int af, const void *addr, char *str, socklen_t len);
202
203const char *rose_ntop(int af, const void *addr, char *buf, socklen_t buflen);
204
205const char *mpls_ntop(int af, const void *addr, char *str, size_t len);
206int mpls_pton(int af, const char *src, void *addr, size_t alen);
207
208const char *netrom_ntop(int af, const void *addr, char *str, socklen_t len);
209
210extern int __iproute2_hz_internal;
211int __get_hz(void);
212
213static __inline__ int get_hz(void)
214{
215 if (__iproute2_hz_internal == 0)
216 __iproute2_hz_internal = __get_hz();
217 return __iproute2_hz_internal;
218}
219
220extern int __iproute2_user_hz_internal;
221int __get_user_hz(void);
222
223static __inline__ int get_user_hz(void)
224{
225 if (__iproute2_user_hz_internal == 0)
226 __iproute2_user_hz_internal = __get_user_hz();
227 return __iproute2_user_hz_internal;
228}
229
230static inline __u32 nl_mgrp(__u32 group)
231{
232 if (group > 31 ) {
233 fprintf(stderr, "Use setsockopt for this group %d\n", group);
234 exit(-1);
235 }
236 return group ? (1 << (group - 1)) : 0;
237}
238
239
240static inline unsigned long __tv_to_jiffies(const struct timeval *tv)
241{
242 unsigned long long jif;
243
244 jif = 1000000ULL * tv->tv_sec + tv->tv_usec;
245
246 return jif/10000;
247}
248
249static inline void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
250{
251 unsigned long long tvusec;
252
253 tvusec = 10000ULL*jiffies;
254 tv->tv_sec = tvusec/1000000;
255 tv->tv_usec = tvusec - 1000000 * tv->tv_sec;
256}
257
258void print_escape_buf(const __u8 *buf, size_t len, const char *escape);
259
260int print_timestamp(FILE *fp);
261void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n);
262
263unsigned int print_name_and_link(const char *fmt,
264 const char *name, struct rtattr *tb[]);
265
266#define BIT(nr) (UINT64_C(1) << (nr))
267
268#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
269
270#define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
271
272#ifndef offsetof
273# define offsetof(type, member) ((size_t) &((type *)0)->member)
274#endif
275
276#ifndef min
277# define min(x, y) ({ \
278 typeof(x) _min1 = (x); \
279 typeof(y) _min2 = (y); \
280 (void) (&_min1 == &_min2); \
281 _min1 < _min2 ? _min1 : _min2; })
282#endif
283
284#ifndef __check_format_string
285# define __check_format_string(pos_str, pos_args) \
286 __attribute__ ((format (printf, (pos_str), (pos_args))))
287#endif
288
289#define _textify(x) #x
290#define textify(x) _textify(x)
291
292#define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
293#define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
294
295extern int cmdlineno;
296ssize_t getcmdline(char **line, size_t *len, FILE *in);
297int makeargs(char *line, char *argv[], int maxargs);
298
299char *int_to_str(int val, char *buf);
300int get_guid(__u64 *guid, const char *arg);
301int get_real_family(int rtm_type, int rtm_family);
302
303int cmd_exec(const char *cmd, char **argv, bool do_fork,
304 int (*setup)(void *), void *arg);
305int make_path(const char *path, mode_t mode);
306char *find_cgroup2_mount(bool do_mount);
307__u64 get_cgroup2_id(const char *path);
308char *get_cgroup2_path(__u64 id, bool full);
309int get_command_name(const char *pid, char *comm, size_t len);
310char *get_task_name(pid_t pid);
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_num_all(__u32 *keyp, const char *key);
335int parse_mapping_gen(int *argcp, char ***argvp,
336 int (*key_cb)(__u32 *keyp, const char *key),
337 int (*mapping_cb)(__u32 key, char *value, void *data),
338 void *mapping_cb_data);
339int parse_mapping(int *argcp, char ***argvp, bool allow_all,
340 int (*mapping_cb)(__u32 key, char *value, void *data),
341 void *mapping_cb_data);
342
343struct str_num_map {
344 const char *str;
345 unsigned int num;
346};
347
348int str_map_lookup_str(const struct str_num_map *map, const char *needle);
349const char *str_map_lookup_uint(const struct str_num_map *map,
350 unsigned int val);
351const char *str_map_lookup_u16(const struct str_num_map *map, uint16_t val);
352const char *str_map_lookup_u8(const struct str_num_map *map, uint8_t val);
353
354unsigned int get_str_char_count(const char *str, int match);
355int str_split_by_char(char *str, char **before, char **after, int match);
356
357#define INDENT_STR_MAXLEN 32
358
359struct indent_mem {
360 int indent_level;
361 char indent_str[INDENT_STR_MAXLEN + 1];
362};
363
364struct indent_mem *alloc_indent_mem(void);
365void free_indent_mem(struct indent_mem *mem);
366void inc_indent(struct indent_mem *mem);
367void dec_indent(struct indent_mem *mem);
368void print_indent(struct indent_mem *mem);
369
370#endif
371
