1 /*
2 * Copyright (c) 2013 Patrick Kelsey. All rights reserved.
3 * Copyright (C) 2017-2021 THL A29 Limited, a Tencent company.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 * list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * Derived in part from libuinet's uinet_host_interface.c.
27 */
28
29 #include <assert.h>
30 #include <errno.h>
31 #include <string.h>
32 #include <stdarg.h>
33 #include <stdint.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <sys/mman.h>
37 #include <sys/stat.h>
38 #include <pthread.h>
39 #include <sched.h>
40 #include <time.h>
41
42 #include <openssl/rand.h>
43 #include <rte_malloc.h>
44
45 #include "ff_host_interface.h"
46 #include "ff_errno.h"
47
48 static struct timespec current_ts;
49 extern void* ff_mem_get_page();
50 extern int ff_mem_free_addr(void* p);
51
52 void *
ff_mmap(void * addr,uint64_t len,int prot,int flags,int fd,uint64_t offset)53 ff_mmap(void *addr, uint64_t len, int prot, int flags, int fd, uint64_t offset)
54 {
55 //return rte_malloc("", len, 4096);
56 int host_prot;
57 int host_flags;
58
59 #ifdef FF_USE_PAGE_ARRAY
60 if( len == 4096 ){
61 return ff_mem_get_page();
62 }
63 else
64 #endif
65 {
66
67 assert(ff_PROT_NONE == PROT_NONE);
68 host_prot = 0;
69 if ((prot & ff_PROT_READ) == ff_PROT_READ) host_prot |= PROT_READ;
70 if ((prot & ff_PROT_WRITE) == ff_PROT_WRITE) host_prot |= PROT_WRITE;
71
72 host_flags = 0;
73 if ((flags & ff_MAP_SHARED) == ff_MAP_SHARED) host_flags |= MAP_SHARED;
74 if ((flags & ff_MAP_PRIVATE) == ff_MAP_PRIVATE) host_flags |= MAP_PRIVATE;
75 if ((flags & ff_MAP_ANON) == ff_MAP_ANON) host_flags |= MAP_ANON;
76
77 void *ret = (mmap(addr, len, host_prot, host_flags, fd, offset));
78
79 if ((uint64_t)ret == -1) {
80 printf("fst mmap failed:%s\n", strerror(errno));
81 exit(1);
82 }
83 return ret;
84 }
85 }
86
87 int
ff_munmap(void * addr,uint64_t len)88 ff_munmap(void *addr, uint64_t len)
89 {
90 #ifdef FF_USE_PAGE_ARRAY
91 if ( len == 4096 ){
92 return ff_mem_free_addr(addr);
93 }
94 #endif
95 //rte_free(addr);
96 //return 0;
97 return (munmap(addr, len));
98 }
99
100
101 void *
ff_malloc(uint64_t size)102 ff_malloc(uint64_t size)
103 {
104 //return rte_malloc("", size, 0);
105 return (malloc(size));
106 }
107
108
109 void *
ff_calloc(uint64_t number,uint64_t size)110 ff_calloc(uint64_t number, uint64_t size)
111 {
112 //return rte_calloc("", number, size, 0);
113 return (calloc(number, size));
114 }
115
116
117 void *
ff_realloc(void * p,uint64_t size)118 ff_realloc(void *p, uint64_t size)
119 {
120 if (size) {
121 //return rte_realloc(p, size, 0);
122 return (realloc(p, size));
123 }
124
125 return (p);
126 }
127
128
129 void
ff_free(void * p)130 ff_free(void *p)
131 {
132 //rte_free(p);
133 free(p);
134 }
135
136 void panic(const char *, ...) __attribute__((__noreturn__));
137
138 const char *panicstr = NULL;
139
140 void
panic(const char * fmt,...)141 panic(const char *fmt, ...)
142 {
143 va_list ap;
144
145 va_start(ap, fmt);
146 vprintf(fmt, ap);
147 va_end(ap);
148
149 abort();
150 }
151
152 void
ff_clock_gettime(int id,int64_t * sec,long * nsec)153 ff_clock_gettime(int id, int64_t *sec, long *nsec)
154 {
155 struct timespec ts;
156 int host_id;
157 int rv;
158
159 switch (id) {
160 case ff_CLOCK_REALTIME:
161 host_id = CLOCK_REALTIME;
162 break;
163 #ifdef CLOCK_MONOTONIC_FAST
164 case ff_CLOCK_MONOTONIC_FAST:
165 host_id = CLOCK_MONOTONIC_FAST;
166 break;
167 #endif
168 case ff_CLOCK_MONOTONIC:
169 default:
170 host_id = CLOCK_MONOTONIC;
171 break;
172 }
173
174 rv = clock_gettime(host_id, &ts);
175 assert(0 == rv);
176
177 *sec = (int64_t)ts.tv_sec;
178 *nsec = (long)ts.tv_nsec;
179 }
180
181 uint64_t
ff_clock_gettime_ns(int id)182 ff_clock_gettime_ns(int id)
183 {
184 int64_t sec;
185 long nsec;
186
187 ff_clock_gettime(id, &sec, &nsec);
188
189 return ((uint64_t)sec * ff_NSEC_PER_SEC + nsec);
190 }
191
192 void
ff_get_current_time(time_t * sec,long * nsec)193 ff_get_current_time(time_t *sec, long *nsec)
194 {
195 if (sec) {
196 *sec = current_ts.tv_sec;
197 }
198
199 if (nsec) {
200 *nsec = current_ts.tv_nsec;
201 }
202 }
203
204 void
ff_update_current_ts()205 ff_update_current_ts()
206 {
207 int rv = clock_gettime(CLOCK_REALTIME, ¤t_ts);
208 assert(rv == 0);
209 }
210
211 void
ff_arc4rand(void * ptr,unsigned int len,int reseed)212 ff_arc4rand(void *ptr, unsigned int len, int reseed)
213 {
214 (void)reseed;
215
216 RAND_bytes(ptr, len);
217 }
218
219 uint32_t
ff_arc4random(void)220 ff_arc4random(void)
221 {
222 uint32_t ret;
223 ff_arc4rand(&ret, sizeof ret, 0);
224 return ret;
225 }
226
ff_setenv(const char * name,const char * value)227 int ff_setenv(const char *name, const char *value)
228 {
229 return setenv(name, value, 1);
230 }
231
ff_getenv(const char * name)232 char *ff_getenv(const char *name)
233 {
234 return getenv(name);
235 }
236
ff_os_errno(int error)237 void ff_os_errno(int error)
238 {
239 switch (error) {
240 case ff_EPERM: errno = EPERM; break;
241 case ff_ENOENT: errno = ENOENT; break;
242 case ff_ESRCH: errno = ESRCH; break;
243 case ff_EINTR: errno = EINTR; break;
244 case ff_EIO: errno = EIO; break;
245 case ff_ENXIO: errno = ENXIO; break;
246 case ff_E2BIG: errno = E2BIG; break;
247 case ff_ENOEXEC: errno = ENOEXEC; break;
248 case ff_EBADF: errno = EBADF; break;
249 case ff_ECHILD: errno = ECHILD; break;
250 case ff_EDEADLK: errno = EDEADLK; break;
251 case ff_ENOMEM: errno = ENOMEM; break;
252 case ff_EACCES: errno = EACCES; break;
253 case ff_EFAULT: errno = EFAULT; break;
254 case ff_ENOTBLK: errno = ENOTBLK; break;
255 case ff_EBUSY: errno = EBUSY; break;
256 case ff_EEXIST: errno = EEXIST; break;
257 case ff_EXDEV: errno = EXDEV; break;
258 case ff_ENODEV: errno = ENODEV; break;
259 case ff_ENOTDIR: errno = ENOTDIR; break;
260 case ff_EISDIR: errno = EISDIR; break;
261 case ff_EINVAL: errno = EINVAL; break;
262 case ff_ENFILE: errno = ENFILE; break;
263 case ff_EMFILE: errno = EMFILE; break;
264 case ff_ENOTTY: errno = ENOTTY; break;
265 case ff_ETXTBSY: errno = ETXTBSY; break;
266 case ff_EFBIG: errno = EFBIG; break;
267 case ff_ENOSPC: errno = ENOSPC; break;
268 case ff_ESPIPE: errno = ESPIPE; break;
269 case ff_EROFS: errno = EROFS; break;
270 case ff_EMLINK: errno = EMLINK; break;
271 case ff_EPIPE: errno = EPIPE; break;
272 case ff_EDOM: errno = EDOM; break;
273 case ff_ERANGE: errno = ERANGE; break;
274
275 /* case ff_EAGAIN: same as EWOULDBLOCK */
276 case ff_EWOULDBLOCK: errno = EWOULDBLOCK; break;
277
278 case ff_EINPROGRESS: errno = EINPROGRESS; break;
279 case ff_EALREADY: errno = EALREADY; break;
280 case ff_ENOTSOCK: errno = ENOTSOCK; break;
281 case ff_EDESTADDRREQ: errno = EDESTADDRREQ; break;
282 case ff_EMSGSIZE: errno = EMSGSIZE; break;
283 case ff_EPROTOTYPE: errno = EPROTOTYPE; break;
284 case ff_ENOPROTOOPT: errno = ENOPROTOOPT; break;
285 case ff_EPROTONOSUPPORT: errno = EPROTONOSUPPORT; break;
286 case ff_ESOCKTNOSUPPORT: errno = ESOCKTNOSUPPORT; break;
287
288 /* case ff_EOPNOTSUPP: same as ENOTSUP */
289 case ff_ENOTSUP: errno = ENOTSUP; break;
290
291 case ff_EPFNOSUPPORT: errno = EPFNOSUPPORT; break;
292 case ff_EAFNOSUPPORT: errno = EAFNOSUPPORT; break;
293 case ff_EADDRINUSE: errno = EADDRINUSE; break;
294 case ff_EADDRNOTAVAIL: errno = EADDRNOTAVAIL; break;
295 case ff_ENETDOWN: errno = ENETDOWN; break;
296 case ff_ENETUNREACH: errno = ENETUNREACH; break;
297 case ff_ENETRESET: errno = ENETRESET; break;
298 case ff_ECONNABORTED: errno = ECONNABORTED; break;
299 case ff_ECONNRESET: errno = ECONNRESET; break;
300 case ff_ENOBUFS: errno = ENOBUFS; break;
301 case ff_EISCONN: errno = EISCONN; break;
302 case ff_ENOTCONN: errno = ENOTCONN; break;
303 case ff_ESHUTDOWN: errno = ESHUTDOWN; break;
304 case ff_ETOOMANYREFS: errno = ETOOMANYREFS; break;
305 case ff_ETIMEDOUT: errno = ETIMEDOUT; break;
306 case ff_ECONNREFUSED: errno = ECONNREFUSED; break;
307 case ff_ELOOP: errno = ELOOP; break;
308 case ff_ENAMETOOLONG: errno = ENAMETOOLONG; break;
309 case ff_EHOSTDOWN: errno = EHOSTDOWN; break;
310 case ff_EHOSTUNREACH: errno = EHOSTUNREACH; break;
311 case ff_ENOTEMPTY: errno = ENOTEMPTY; break;
312 case ff_EUSERS: errno = EUSERS; break;
313 case ff_EDQUOT: errno = EDQUOT; break;
314 case ff_ESTALE: errno = ESTALE; break;
315 case ff_EREMOTE: errno = EREMOTE; break;
316 case ff_ENOLCK: errno = ENOLCK; break;
317 case ff_ENOSYS: errno = ENOSYS; break;
318 case ff_EIDRM: errno = EIDRM; break;
319 case ff_ENOMSG: errno = ENOMSG; break;
320 case ff_EOVERFLOW: errno = EOVERFLOW; break;
321 case ff_ECANCELED: errno = ECANCELED; break;
322 case ff_EILSEQ: errno = EILSEQ; break;
323 case ff_EBADMSG: errno = EBADMSG; break;
324 case ff_EMULTIHOP: errno = EMULTIHOP; break;
325 case ff_ENOLINK: errno = ENOLINK; break;
326 case ff_EPROTO: errno = EPROTO; break;
327 default: errno = error; break;
328 }
329
330 }
331
332