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
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
enum
{
MaxRpc = 2048, /* max size of any protocol message */
/* keep in sync with rpc.c:/rpcname */
RpcUnknown = 0, /* Rpc.op */
RpcAuthinfo,
RpcAttr,
RpcRead,
RpcStart,
RpcWrite,
RpcReadHex,
RpcWriteHex,
/* thread stack size - big buffers for printing */
STACK = 65536,
};
typedef struct Conv Conv;
typedef struct Key Key;
typedef struct Logbuf Logbuf;
typedef struct Proto Proto;
typedef struct Ring Ring;
typedef struct Role Role;
typedef struct Rpc Rpc;
struct Rpc
{
int op;
void *data;
int count;
int hex; /* should result of read be turned into hex? */
};
struct Conv
{
int ref; /* ref count */
int hangup; /* flag: please hang up */
int active; /* flag: there is an active thread */
int done; /* flag: conversation finished successfully */
ulong tag; /* identifying tag */
Conv *next; /* in linked list */
char *sysuser; /* system name for user speaking to us */
char *state; /* for debugging */
char statebuf[128]; /* for formatted states */
char err[ERRMAX]; /* last error */
Attr *attr; /* current attributes */
Proto *proto; /* protocol */
Channel *rpcwait; /* wait here for an rpc */
Rpc rpc; /* current rpc. op==RpcUnknown means none */
char rpcbuf[MaxRpc]; /* buffer for rpc */
char reply[MaxRpc]; /* buffer for response */
int nreply; /* count of response */
void (*kickreply)(Conv*); /* call to send response */
Req *req; /* 9P call to read response */
Channel *keywait; /* wait here for key confirmation */
};
struct Key
{
int ref; /* ref count */
ulong tag; /* identifying tag: sequence number */
Attr *attr; /* public attributes */
Attr *privattr; /* private attributes, like !password */
Proto *proto; /* protocol owner of key */
void *priv; /* protocol-specific storage */
};
struct Logbuf
{
Req *wait;
Req **waitlast;
int rp;
int wp;
char *msg[128];
};
struct Ring
{
Key **key;
int nkey;
};
struct Proto
{
char *name; /* name of protocol */
Role *roles; /* list of roles and service functions */
char *keyprompt; /* required attributes for key proto=name */
int (*checkkey)(Key*); /* initialize k->priv or reject key */
void (*closekey)(Key*); /* free k->priv */
};
struct Role
{
char *name; /* name of role */
int (*fn)(Conv*); /* service function */
};
extern char *authaddr; /* plan9.c */
extern int *confirminuse; /* fs.c */
extern Conv* conv; /* conv.c */
extern int debug; /* main.c */
extern char *factname; /* main.c */
extern Srv fs; /* fs.c */
extern int *needkeyinuse; /* fs.c */
extern char *owner; /* main.c */
extern Proto *prototab[]; /* main.c */
extern Ring ring; /* key.c */
extern char *rpcname[]; /* rpc.c */
extern char Easproto[]; /* err.c */
void fsinit0(void);
/* provided by lib9p */
#define emalloc emalloc9p
#define erealloc erealloc9p
#define estrdup estrdup9p
/* hidden in libauth */
#define attrfmt _attrfmt
#define copyattr _copyattr
#define delattr _delattr
#define findattr _findattr
#define freeattr _freeattr
#define mkattr _mkattr
#define parseattr _parseattr
#define strfindattr _strfindattr
extern Attr* addattr(Attr*, char*, ...);
/* #pragma varargck argpos addattr 2 */
extern Attr* addattrs(Attr*, Attr*);
extern Attr* sortattr(Attr*);
extern int attrnamefmt(Fmt*);
/* #pragma varargck type "N" Attr* */
extern int matchattr(Attr*, Attr*, Attr*);
extern Attr* parseattrfmt(char*, ...);
/* #pragma varargck argpos parseattrfmt 1 */
extern Attr* parseattrfmtv(char*, va_list);
extern void confirmflush(Req*);
extern void confirmread(Req*);
extern int confirmwrite(char*);
extern int needkey(Conv*, Attr*);
extern int badkey(Conv*, Key*, char*, Attr*);
extern int confirmkey(Conv*, Key*);
extern Conv* convalloc(char*);
extern void convclose(Conv*);
extern void convhangup(Conv*);
extern int convneedkey(Conv*, Attr*);
extern int convbadkey(Conv*, Key*, char*, Attr*);
extern int convread(Conv*, void*, int);
extern int convreadm(Conv*, char**);
extern int convprint(Conv*, char*, ...);
/* #pragma varargck argpos convprint 2 */
extern int convreadfn(Conv*, int(*)(void*, int), char**);
extern void convreset(Conv*);
extern int convwrite(Conv*, void*, int);
extern int ctlwrite(char*);
extern char* estrappend(char*, char*, ...);
/* #pragma varargck argpos estrappend 2 */
extern int hexparse(char*, uchar*, int);
extern void keyadd(Key*);
extern Key* keylookup(char*, ...);
extern Key* keyiterate(int, char*, ...);
/* #pragma varargck argpos keylookup 1 */
extern Key* keyfetch(Conv*, char*, ...);
/* #pragma varargck argpos keyfetch 2 */
extern void keyclose(Key*);
extern void keyevict(Conv*, Key*, char*, ...);
/* #pragma varargck argpos keyevict 3 */
extern Key* keyreplace(Conv*, Key*, char*, ...);
/* #pragma varargck argpos keyreplace 3 */
extern void lbkick(Logbuf*);
extern void lbappend(Logbuf*, char*, ...);
extern void lbvappend(Logbuf*, char*, va_list);
/* #pragma varargck argpos lbappend 2 */
extern void lbread(Logbuf*, Req*);
extern void lbflush(Logbuf*, Req*);
extern void flog(char*, ...);
/* #pragma varargck argpos flog 1 */
extern void logflush(Req*);
extern void logread(Req*);
extern void logwrite(Req*);
extern void needkeyread(Req*);
extern void needkeyflush(Req*);
extern int needkeywrite(char*);
extern int needkeyqueue(void);
extern Attr* addcap(Attr*, char*, Ticket*);
extern Key* plan9authkey(Attr*);
extern int _authdial(char*, char*);
extern int memrandom(void*, int);
extern Proto* protolookup(char*);
extern int rpcwrite(Conv*, void*, int);
extern void rpcrespond(Conv*, char*, ...);
/* #pragma varargck argpos rpcrespond 2 */
extern void rpcrespondn(Conv*, char*, void*, int);
extern void rpcexec(Conv*);
extern int xioauthdial(char*, char*);
extern void xioclose(int);
extern int xiodial(char*, char*, char*, int*);
extern int xiowrite(int, void*, int);
extern int xioasrdresp(int, void*, int);
extern int xioasgetticket(int, char*, char*);
/* pkcs1.c - maybe should be in libsec */
typedef DigestState *DigestAlg(uchar*, ulong, uchar*, DigestState*);
int rsasign(RSApriv*, DigestAlg*, uchar*, uint, uchar*, uint);
int rsaverify(RSApub*, DigestAlg*, uchar*, uint, uchar*, uint);
void mptoberjust(mpint*, uchar*, uint);
extern int extrafactotumdir;
int havesecstore(void);
int secstorefetch(void);
|