/[pkg-mixmaster]/trunk/Mix/Src/mix3.h
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Revision 182 - (hide annotations) (download)
Sun Aug 25 13:27:40 2002 UTC (10 years, 9 months ago) by weaselp
File MIME type: text/plain
File size: 12096 byte(s)
Use names rather than numbers as arument to pgp_armor. Have PGP PRIVATE for armoring
1 rabbi 1 /* Mixmaster version 3 -- (C) 1999 Anonymizer Inc.
2    
3     Mixmaster may be redistributed and modified under certain conditions.
4     This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
5     ANY KIND, either express or implied. See the file COPYRIGHT for
6     details.
7    
8     Function prototypes
9 weaselp 182 $Id: mix3.h,v 1.12 2002/08/25 13:27:40 weaselp Exp $ */
10 rabbi 1
11    
12     #ifndef _MIX3_H
13     #define _MIX3_H
14     #define COPYRIGHT "Copyright Anonymizer Inc."
15    
16     #include "config.h"
17     #include "mix.h"
18    
19     #ifdef WIN32
20     #ifndef USE_SOCK
21     #define _WINSOCKAPI_ /* don't include winsock */
22     #endif
23     #include <windows.h>
24 rabbi 11 #ifdef _MSC
25     #define snprintf _snprintf
26 rabbi 1 #endif
27 rabbi 11 #define DIRSEP '\\'
28     #define DIRSEPSTR "\\"
29     #else
30     #define DIRSEP '/'
31     #define DIRSEPSTR "/"
32     #endif
33 rabbi 1
34     #define NOT_IMPLEMENTED {printf("Function not implemented.\n");return -1;}
35     #define SECONDSPERDAY 86400
36    
37     /* Dynamically allocated buffers */
38    
39     int buf_reset(BUFFER *buffer);
40     int buf_clear(BUFFER *buffer);
41     int buf_append(BUFFER *buffer, byte *mess, int len);
42     int buf_cat(BUFFER *to, BUFFER *from);
43     int buf_set(BUFFER *to, BUFFER *from);
44     int buf_rest(BUFFER *to, BUFFER *from);
45     int buf_appendrnd(BUFFER *to, int n);
46     int buf_appendzero(BUFFER *to, int n);
47     int buf_setc(BUFFER *buf, byte c);
48     int buf_appendc(BUFFER *to, byte b);
49     int buf_setrnd(BUFFER *b, int n);
50     int buf_setf(BUFFER *buffer, char *fmt, ...);
51     int buf_appendf(BUFFER *buffer, char *fmt, ...);
52     int buf_sets(BUFFER *buf, char *s);
53     int buf_appends(BUFFER *buffer, char *s);
54     int buf_nl(BUFFER *buffer);
55     int buf_pad(BUFFER *buffer, int size);
56     int buf_prepare(BUFFER *buffer, int size);
57     int buf_rewind(BUFFER *buffer);
58     int buf_getc(BUFFER *buffer);
59     void buf_ungetc(BUFFER *buffer);
60     int buf_get(BUFFER *buffer, BUFFER *to, int n);
61     int buf_getline(BUFFER *buffer, BUFFER *line);
62     int buf_chop(BUFFER *b);
63     void buf_move(BUFFER *dest, BUFFER *src);
64     byte *buf_data(BUFFER *buffer);
65 weaselp 116 int buf_isheader(BUFFER *buffer);
66 rabbi 1 int buf_getheader(BUFFER *buffer, BUFFER *field, BUFFER *content);
67     int buf_appendheader(BUFFER *buffer, BUFFER *field, BUFFER *contents);
68     int buf_lookahead(BUFFER *buffer, BUFFER *line);
69     int buf_eq(BUFFER *b1, BUFFER *b2);
70     int buf_ieq(BUFFER *b1, BUFFER *b2);
71     void buf_cut_out(BUFFER *buffer, BUFFER *cut_out, BUFFER *rest,
72     int from, int len);
73    
74     int buf_appendl(BUFFER *b, long l);
75     int buf_appendl_lo(BUFFER *b, long l);
76     long buf_getl(BUFFER *b);
77     long buf_getl_lo(BUFFER *b);
78     int buf_appendi(BUFFER *b, int i);
79     int buf_appendi_lo(BUFFER *b, int i);
80     int buf_geti(BUFFER *b);
81     int buf_geti_lo(BUFFER *b);
82    
83     /* String comparison */
84     int strieq(const char *s1, const char *s2);
85     int strileft(const char *string, const char *keyword);
86     int striright(const char *string, const char *keyword);
87     int strifind(const char *string, const char *keyword);
88    
89     int streq(const char *s1, const char *s2);
90     int strfind(const char *string, const char *keyword);
91     int strleft(const char *string, const char *keyword);
92    
93     void strcatn(char *dest, const char *src, int n);
94    
95     int bufleft(BUFFER *b, char *k);
96     int buffind(BUFFER *b, char *k);
97     int bufeq(BUFFER *b, char *k);
98    
99     int bufileft(BUFFER *b, char *k);
100     int bufifind(BUFFER *b, char *k);
101     int bufiright(BUFFER *b, char *k);
102     int bufieq(BUFFER *b, char *k);
103    
104     /* Utility functions */
105     void whoami(char *addr, char *defaultname);
106     int sendinfofile(char *name, char *log, BUFFER *address, BUFFER *subject);
107     int stats(BUFFER *out);
108     int conf(BUFFER *out);
109     void conf_premail(BUFFER *out);
110    
111     void rfc822_addr(BUFFER *line, BUFFER *list);
112     void rfc822_name(BUFFER *line, BUFFER *name);
113     void sendmail_begin(void); /* begin mail sending session */
114     void sendmail_end(void); /* end mail sending session */
115 weaselp 116 int sendmail_loop(BUFFER *message, char *from, BUFFER *address);
116 rabbi 1 int sendmail(BUFFER *message, char *from, BUFFER *address);
117     int mixfile(char *path, const char *name);
118     int file_to_out(const char *name);
119     FILE *mix_openfile(const char *name, const char *a);
120     FILE *openpipe(const char *prog);
121     int closepipe(FILE *fp);
122 weaselp 153 int maildirWrite(char *maildir, BUFFER *message, int create);
123 rabbi 1
124     typedef struct {
125     char *name;
126     FILE *f;
127     } LOCK;
128    
129     int lock(FILE *f);
130     int unlock(FILE *f);
131     LOCK *lockfile(char *filename);
132     int unlockfile(LOCK *lock);
133    
134     int filtermsg(BUFFER *msg);
135     BUFFER *readdestblk( );
136     int doblock(BUFFER *line, BUFFER *filter, int logandreset);
137     int doallow(BUFFER *line, BUFFER *filter);
138     int allowmessage(BUFFER *in);
139    
140     void errlog(int type, char *format,...);
141     void clienterr(BUFFER *msgbuf, char *err);
142     void logmail(char *mailbox, BUFFER *message);
143    
144     void mix_status(char *fmt,...);
145     void mix_genericerror(void);
146    
147     #define ERRORMSG 1
148     #define WARNING 2
149     #define NOTICE 3
150     #define LOG 4
151     #define DEBUGINFO 5
152    
153     int decode(BUFFER *in, BUFFER *out);
154     int encode(BUFFER *b, int linelen);
155     void id_encode(byte id[], byte *s);
156     void id_decode(byte *s, byte id[]);
157    
158     int decode_header(BUFFER *content);
159     int boundary(BUFFER *line, BUFFER *mboundary);
160     void get_parameter(BUFFER *content, char *attribute, BUFFER *value);
161     int get_type(BUFFER *content, BUFFER *type, BUFFER *subtype);
162     int mail_encode(BUFFER *in, int encoding);
163     int hdr_encode(BUFFER *in, int n);
164     int attachfile(BUFFER *message, BUFFER *filename);
165     int pgpmime_sign(BUFFER *message, BUFFER *uid, BUFFER *pass, char *secring);
166     int mime_attach(BUFFER *message, BUFFER *attachment, BUFFER *type);
167     void mimedecode(BUFFER *msg);
168 rabbi 41 int qp_decode_message(BUFFER *msg);
169 rabbi 1
170     #define MIME_8BIT 1 /* transport is 8bit */
171     #define MIME_7BIT 2 /* transport is 7bit */
172    
173     /* randomness */
174     int rnd_bytes(byte *b, int n);
175     byte rnd_byte(void);
176     int rnd_number(int n);
177     int rnd_add(byte *b, int l);
178     int rnd_seed(void);
179     void rnd_time(void);
180    
181     int rnd_init(void);
182     int rnd_final(void);
183     void rnd_error(void);
184    
185     #define RND_QUERY 0
186     #define RND_NOTSEEDED -1
187     #define RND_SEEDED 1
188     #define RND_WILLSEED 2
189     extern int rnd_state; /* flag for PRNG status */
190    
191     /* compression */
192     int buf_compress(BUFFER *b);
193     int buf_zip(BUFFER *out, BUFFER *in, int bits);
194     int buf_uncompress(BUFFER *b);
195     int buf_unzip(BUFFER *b, int type);
196    
197     /* crypto functions */
198     int digest_md5(BUFFER *b, BUFFER *md);
199     int isdigest_md5(BUFFER *b, BUFFER *md);
200     int digestmem_md5(byte *b, int n, BUFFER *md);
201     int digest_sha1(BUFFER *b, BUFFER *md);
202     int digest_rmd160(BUFFER *b, BUFFER *md);
203    
204     int keymgt(int force);
205     int key(BUFFER *b);
206     int adminkey(BUFFER *b);
207    
208     #define ENCRYPT 1
209     #define DECRYPT 0
210     int buf_crypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
211    
212     #ifdef USE_IDEA
213     int buf_ideacrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
214     #endif
215     int buf_bfcrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
216     int buf_3descrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
217     int buf_castcrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
218 rabbi 98 #ifdef USE_AES
219     int buf_aescrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
220     #endif
221 rabbi 1
222     int db_getseckey(byte keyid[], BUFFER *key);
223     int db_getpubkey(byte keyid[], BUFFER *key);
224     int pk_decrypt(BUFFER *encrypted, BUFFER *privkey);
225     int pk_encrypt(BUFFER *plaintext, BUFFER *privkey);
226     int check_seckey(BUFFER *buf, const byte id[]);
227     int check_pubkey(BUFFER *buf, const byte id[]);
228     int v2createkey(void);
229     int seckeytopub(BUFFER *pub, BUFFER *sec, byte keyid[]);
230    
231     /* configuration, general remailer functions */
232     int mix_configline(char *line);
233     int mix_initialized(void);
234     int mix_daily(void);
235    
236     /* message pool */
237     #define INTERMEDIATE 0
238     int pool_send(void);
239     int pool_read(BUFFER *pool);
240     int pool_add(BUFFER *msg, char *type);
241     FILE *pool_new(char *type, char *tmpname, char *path);
242     int mix_pool(BUFFER *msg, int type, long latent);
243     int pool_packetfile(char *fname, BUFFER *mid, int packetnum);
244     void pool_packetexp(void);
245     int idexp(void);
246     void pop3get(void);
247    
248 rabbi 82 typedef struct { /* added for binary id.log change */
249     char id[16];
250     long time;
251     } idlog_t;
252    
253 rabbi 1 /* statistics */
254     int stats_log(int);
255     int stats_out(int);
256    
257     /* OpenPGP */
258 weaselp 182 #define PGP_ARMOR_NORMAL 0
259     #define PGP_ARMOR_REM 1
260     #define PGP_ARMOR_KEY 2
261     #define PGP_ARMOR_NYMKEY 3
262     #define PGP_ARMOR_NYMSIG 4
263     #define PGP_ARMOR_SECKEY 5
264    
265 rabbi 1 int pgp_keymgt(int force);
266     int pgp_armor(BUFFER *buf, int mode);
267     int pgp_dearmor(BUFFER *buf, BUFFER *out);
268     int pgp_pubkeycert(BUFFER *userid, char *keyring, BUFFER *pass,
269     BUFFER *out, int remail);
270     int pgp_signtxt(BUFFER *msg, BUFFER *uid, BUFFER *pass,
271     char *secring, int remail);
272     int pgp_isconventional(BUFFER *buf);
273     int pgp_mailenc(int mode, BUFFER *msg, char *sigid,
274     BUFFER *pass, char *pubring, char *secring);
275     int pgp_signhashalgo(BUFFER *algo, BUFFER *userid, char *secring,
276     BUFFER *pass);
277    
278     /* menu */
279     int menu_initialized;
280     void menu_main(void);
281     void menu_folder(char command, char *name);
282     int menu_getuserpass(BUFFER *p, int mode);
283    
284     int user_pass(BUFFER *b);
285     int user_confirmpass(BUFFER *b);
286     void user_delpass(void);
287    
288     /* remailer */
289     typedef struct {
290     char name[20];
291     int version;
292     char addr[128];
293     byte keyid[16];
294     struct {
295     unsigned int mix:1;
296     unsigned int compress:1;
297    
298     unsigned int cpunk:1;
299     unsigned int pgp:1;
300     unsigned int pgponly:1;
301     unsigned int latent:1;
302     unsigned int hash:1;
303     unsigned int ek:1;
304     unsigned int esub:1;
305    
306     unsigned int nym:1;
307     unsigned int newnym:1;
308    
309     unsigned int post:1;
310     unsigned int middle:1;
311     } flags;
312     struct rinfo {
313     int reliability;
314     int latency;
315     char history[13];
316     } info[2];
317     } REMAILER;
318    
319     #define CHAINMAX 421
320     #define MAXREM 100
321 weaselp 168 int prepare_type2list(BUFFER *out);
322 rabbi 1 int mix2_rlist(REMAILER remailer[]);
323     int t1_rlist(REMAILER remailer[]);
324     int pgp_rlist(REMAILER remailer[], int n);
325 weaselp 171 int pgp_rkeylist(REMAILER remailer[], int keyid[], int n);
326 rabbi 1 int chain_select(int hop[], char *chainstr, int maxrem, REMAILER *remailer,
327     int type, BUFFER *feedback);
328     int chain_rand(REMAILER *remailer, int maxrem,
329     int thischain[], int chainlen, int t);
330     int chain_randfinal(int type, REMAILER *remailer, int maxrem, int t);
331    
332     float chain_reliability(char *chain, int chaintype,
333     char *reliability_string);
334     int mix2_encrypt(int type, BUFFER *message, char *chainstr, int numcopies,
335     BUFFER *feedback);
336     int t1_encrypt(int type, BUFFER *message, char *chainstr, int latency,
337     BUFFER *ek, BUFFER *feedback);
338    
339     int t1_getreply(BUFFER *msg, BUFFER *ek, int len);
340    
341     int t1_decrypt(BUFFER *in);
342     int t2_decrypt(BUFFER *in);
343    
344     int mix2_decrypt(BUFFER *m);
345     int mix3_decrypt(BUFFER *m);
346    
347     /* type 2 */
348     #define MAGIC0 0
349     #define MAGIC1 3
350    
351     int v3_magic(byte *b);
352     int v2body(BUFFER *body);
353     int v2body_setlen(BUFFER *body);
354     int v2partial(BUFFER *body, BUFFER *mid, int packet, int numpackets);
355     int v2_merge(BUFFER *mid);
356     int mix_armor(BUFFER *in);
357     int mix_dearmor(BUFFER *armored, BUFFER *bin);
358    
359     /* type 1 */
360     #define HDRMARK "::"
361     #define EKMARK "**"
362     #define HASHMARK "##"
363     int isline(BUFFER *line, char *text);
364    
365     /* nym database */
366    
367     #define NYM_WAITING 0
368     #define NYM_OK 1
369     #define NYM_DELETED 2
370     #define NYM_ANY -1
371    
372     int nymlist_read(BUFFER *n);
373     int nymlist_write(BUFFER *list);
374     int nymlist_get(BUFFER *list, char *nym, BUFFER *config, BUFFER *ek,
375     BUFFER *options, BUFFER *name, BUFFER *rblocks, int *status);
376     int nymlist_append(BUFFER *list, char *nym, BUFFER *config, BUFFER *options,
377     BUFFER *name, BUFFER *chains, BUFFER *eklist, int status);
378     int nymlist_del(BUFFER *list, char *nym);
379     int nymlist_getnym(char *nym, BUFFER *config, BUFFER *ek, BUFFER *opt,
380     BUFFER *name, BUFFER *rblocks);
381     int nymlist_getstatus(char *nym);
382    
383     /* Visual C lacks dirent */
384     #ifdef _MSC
385     typedef HANDLE DIR;
386    
387     struct dirent {
388     char d_name[PATHMAX];
389     };
390    
391     DIR *opendir(const char *name);
392     struct dirent *readdir(DIR *dir);
393     int closedir(DIR *dir);
394     #endif
395    
396     /* sockets */
397     #if defined(WIN32) && defined(USE_SOCK)
398     #include <winsock.h>
399     int sock_init(void);
400     void sock_exit(void);
401    
402     #else
403     typedef int SOCKET;
404    
405     #define INVALID_SOCKET -1
406     SOCKET opensocket(char *hostname, int port);
407     int closesocket(SOCKET s);
408    
409     #endif
410    
411 rabbi 30 #ifdef WIN32
412     int is_nt_service(void);
413     void set_nt_exit_event();
414     #endif
415    
416 rabbi 1 /* check for memory leaks */
417     #ifdef DEBUG
418     #define malloc mix3_malloc
419     #define free mix3_free
420     BUFFER *mix3_bufnew(char *, int, char*);
421     #if __GNUC__ >= 2
422     # define buf_new() mix3_bufnew(__FILE__, __LINE__, __PRETTY_FUNCTION__)
423     #else
424     # define buf_new() mix3_bufnew(__FILE__, __LINE__, "file")
425     #endif
426     #endif /* DEBUG */
427    
428     #endif

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