forked from unbit/uwsgi
-
Notifications
You must be signed in to change notification settings - Fork 0
/
harness_http_proto.c
209 lines (185 loc) · 5.59 KB
/
harness_http_proto.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
//#include "uwsgi.h"
#include "plugins/http/common.h"
int fuzzer_inited = 0;
extern char **environ;
FILE * fuzz_buf_file;
int fuzz_fd;
int buf_fd;
int fuzz_response_fd;
FILE * fuzz_file;
//extern struct uwsgi_server uwsgi;
int uwsgi_init(int argc, char *argv[], char *envp[]);
/*int LLVMFuzzerInitialize(int *_argc, char ***_argv) {
uwsgi_init(*argc, *argv, environ);
return 0;
}*/
int external_uwsgi_proto_http_parser(struct wsgi_request *wsgi_req);
void fuzzer_init() {
fuzz_buf_file = NULL;
char * argv[] = {
"./uwsgi", /*"--logto", "/run/user/1000/fuzzlog", */"--http", ":0 ", "--module", "testapp:app"
};
uwsgi_init(sizeof(argv)/ sizeof(char *), argv, environ);
buf_fd = memfd_create("fuzz_buf", 0);
if (buf_fd < 0) {
perror("memfd_create");
abort();
}
fuzz_buf_file = fdopen(buf_fd, "w");
if (fuzz_buf_file == NULL) {
perror("fdopen");
abort();
}
fuzz_fd = memfd_create("fuzz", 0);
if (fuzz_fd < 0) {
perror("memfd_create");
abort();
}
fuzz_file = fdopen(fuzz_fd, "w");
if (fuzz_file == NULL) {
perror("fdopen");
abort();
}
fuzz_response_fd = open("/run/user/1000/fuzz_responses", O_WRONLY | O_CREAT | O_APPEND);
if (fuzz_response_fd < 0) {
perror("open");
abort();
}
}
struct corerouter_peer *new_cr_peer() {
struct corerouter_peer *old_peers = NULL, *peers = NULL;
/*while(peers) {
old_peers = peers;
peers = peers->next;
}*/
peers = uwsgi_calloc(sizeof(struct corerouter_peer));
peers->session = NULL;//cs;
peers->fd = -1;
// create input buffer
size_t bufsize = 65535;//cs->corerouter->buffer_size;
if (!bufsize) bufsize = uwsgi.page_size;
peers->in = uwsgi_buffer_new(bufsize);
// add timeout
//peers->current_timeout = cs->corerouter->socket_timeout;
// peers->timeout = cr_add_timeout(cs->corerouter, peers);
peers->prev = old_peers;
return peers;
}
int run_fuzz_input(const uint8_t *Data, size_t Size) {
if (fuzzer_inited == 0) {
fuzzer_init();
fuzzer_inited = 1;
}
/*if (Size > 4080) {
return 0;
}*/
if (lseek(fuzz_fd, 0, SEEK_SET)) {
perror("lseek");
abort();
}
if (lseek(buf_fd, 0, SEEK_SET)) {
perror("lseek");
abort();
}
if (ftruncate(fuzz_fd, 0)) {
perror("ftruncate");
}
if (ftruncate(buf_fd, 0)) {
perror("ftruncate");
}
/*FILE * fuzz_file = fopen("/tmp/fuzz", "w");
if (fuzz_file == NULL) {
perror("fopen");
abort();
}*/
int n_written = fwrite(Data, 1, Size, fuzz_file);
if (n_written != Size) {
perror("fwrite");
abort();
}
if (fflush(fuzz_file)) {
perror("fflush");
abort();
}
if (lseek(fuzz_fd, 0, SEEK_SET)) {
perror("lseek");
abort();
}
//fclose(fuzz_file);
struct wsgi_request req;
//struct wsgi_request * wsgi_req = uwsgi.wsgi_req;//&uwsgi.workers[1].cores[0].req;
struct wsgi_request * wsgi_req = &req;
//printf("run %p %p %d\n", wsgi_req, &uwsgi, getpid());
//int mywid=1,core_id=0;
//printf("RUN wsgi_req %d %ld %p\n", mywid, core_id,&uwsgi.workers[mywid].cores[core_id].req);
struct uwsgi_socket fake_sock;
memset(&req, 0, sizeof(struct wsgi_request));
memset(&fake_sock, 0, sizeof(struct uwsgi_socket));
struct corerouter_peer *main_peer = new_cr_peer();
struct http_session * hr = uwsgi_calloc(sizeof(struct http_session));
struct corerouter_session * cs = (struct corerouter_session *) hr;
cs->main_peer = main_peer;
main_peer->session = cs;
cs->ugs = uwsgi_calloc(sizeof(struct uwsgi_gateway_socket));
cs->ugs->mode = UWSGI_HTTP_NOSSL;
//printf("uwsgi.wsgi_req = %p\n", uwsgi.wsgi_req);
//uwsgi.wsgi_req = wsgi_req;
//printf("uwsgi.wsgi_req = %p\n", uwsgi.wsgi_req);
fake_sock.name = "hui";
int res = hr_read(main_peer);
/*struct stat statbuf;
char buf[10000];
if (fstat(buf_fd, &statbuf)) {
perror("fstat");
abort();
}
if (lseek(buf_fd, 0, SEEK_SET)) {
perror("lseek");
abort();
}
fprintf(stderr, "%ld\n", statbuf.st_size);
int n_read = read(buf_fd, buf, statbuf.st_size);
if (n_read != statbuf.st_size) {
printf("read %d, expected %d\n", n_read, statbuf.st_size);
perror("read");
abort();
}
fprintf(stderr, "||||\n");
fwrite(buf, 1, statbuf.st_size, stderr);
fprintf(stderr, "||||\n");
lseek(buf_fd, 0, SEEK_SET);*/
if (main_peer->prev != NULL) {
struct corerouter_peer * new_peer = main_peer->prev;
uwsgi_buffer_destroy(new_peer->in);
if (new_peer->out) {
uwsgi_buffer_destroy(new_peer->out);
}
free(new_peer);
}
uwsgi_buffer_destroy(main_peer->in);
free(main_peer);
free(cs->ugs);
free(hr);
if (res <= 0) {
return 0;
}
wsgi_req_setup(wsgi_req, 0, &fake_sock);
uwsgi_proto_uwsgi_setup(wsgi_req->socket);
if (lseek(buf_fd, 0, SEEK_SET)) {
perror("lseek");
abort();
}
wsgi_req->fd = dup(buf_fd);//open("/run/user/1000/fuzz_buf", O_RDONLY);
//printf("pp %d\n", wsgi_req->proto_parser_pos);
wsgi_req_recv(0, wsgi_req);
uwsgi_close_request(wsgi_req);
//close(wsgi_req->fd);
//printf("DONE OK\n");
//DoSomethingInterestingWithMyAPI(Data, Size);
return 0; // Non-zero return values are reserved for future use.
}