1 #ifndef __AUTH_H__
2 #define __AUTH_H__ 1
3 
4 #ifdef __cplusplus
5 extern "C" {
6 #endif
7 /*
8 #pragma	src	"/sys/src/libauth"
9 #pragma	lib	"libauth.a"
10 */
11 
12 /*
13  * Interface for typical callers.
14  */
15 
16 typedef struct	AuthInfo	AuthInfo;
17 typedef struct	Chalstate	Chalstate;
18 typedef struct	Chapreply	Chapreply;
19 typedef struct	MSchapreply	MSchapreply;
20 typedef struct	UserPasswd	UserPasswd;
21 typedef struct	AuthRpc		AuthRpc;
22 
23 enum
24 {
25 	MAXCHLEN=	256,		/* max challenge length	*/
26 	MAXNAMELEN=	256,		/* maximum name length */
27 	MD5LEN=		16,
28 
29 	ARok = 0,			/* rpc return values */
30 	ARdone,
31 	ARerror,
32 	ARneedkey,
33 	ARbadkey,
34 	ARwritenext,
35 	ARtoosmall,
36 	ARtoobig,
37 	ARrpcfailure,
38 	ARphase,
39 
40 	AuthRpcMax = 4096,
41 };
42 
43 struct AuthRpc
44 {
45 	int afd;
46 	char ibuf[AuthRpcMax];
47 	char obuf[AuthRpcMax];
48 	char *arg;
49 	uint narg;
50 };
51 
52 struct AuthInfo
53 {
54 	char	*cuid;		/* caller id */
55 	char	*suid;		/* server id */
56 	char	*cap;		/* capability (only valid on server side) */
57 	int	nsecret;	/* length of secret */
58 	uchar	*secret;	/* secret */
59 };
60 
61 struct Chalstate
62 {
63 	char	*user;
64 	char	chal[MAXCHLEN];
65 	int	nchal;
66 	void	*resp;
67 	int	nresp;
68 
69 /* for implementation only */
70 	int	afd;			/* to factotum */
71 	AuthRpc	*rpc;			/* to factotum */
72 	char	userbuf[MAXNAMELEN];	/* temp space if needed */
73 	int	userinchal;		/* user was sent to obtain challenge */
74 };
75 
76 struct	Chapreply		/* for protocol "chap" */
77 {
78 	uchar	id;
79 	char	resp[MD5LEN];
80 };
81 
82 struct	MSchapreply	/* for protocol "mschap" */
83 {
84 	char	LMresp[24];		/* Lan Manager response */
85 	char	NTresp[24];		/* NT response */
86 };
87 
88 struct	UserPasswd
89 {
90 	char	*user;
91 	char	*passwd;
92 };
93 
94 extern	int	newns(char*, char*);
95 extern	int	addns(char*, char*);
96 
97 extern	int	noworld(char*);
98 extern	int	amount(int, char*, int, char*);
99 
100 /* these two may get generalized away -rsc */
101 extern	int	login(char*, char*, char*);
102 extern	int	httpauth(char*, char*);
103 
104 typedef struct Attr Attr;
105 enum {
106 	AttrNameval,		/* name=val -- when matching, must have name=val */
107 	AttrQuery,		/* name? -- when matching, must be present */
108 	AttrDefault,		/* name:=val -- when matching, if present must match INTERNAL */
109 };
110 struct Attr
111 {
112 	int type;
113 	Attr *next;
114 	char *name;
115 	char *val;
116 };
117 
118 typedef int AuthGetkey(char*);
119 
120 int	_attrfmt(Fmt*);
121 Attr	*_copyattr(Attr*);
122 Attr	*_delattr(Attr*, char*);
123 Attr	*_findattr(Attr*, char*);
124 void	_freeattr(Attr*);
125 Attr	*_mkattr(int, char*, char*, Attr*);
126 Attr	*_parseattr(char*);
127 char	*_strfindattr(Attr*, char*);
128 /*
129 #pragma varargck type "A" Attr*
130 */
131 
132 extern AuthInfo*	fauth_proxy(int, AuthRpc *rpc, AuthGetkey *getkey, char *params);
133 extern AuthInfo*	auth_proxy(int fd, AuthGetkey *getkey, char *fmt, ...);
134 extern int		auth_getkey(char*);
135 extern int		(*amount_getkey)(char*);
136 extern void		auth_freeAI(AuthInfo *ai);
137 extern int		auth_chuid(AuthInfo *ai, char *ns);
138 extern Chalstate	*auth_challenge(char*, ...);
139 extern AuthInfo*	auth_response(Chalstate*);
140 extern int		auth_respond(void*, uint, char*, uint, void*, uint, AuthGetkey *getkey, char*, ...);
141 extern void		auth_freechal(Chalstate*);
142 extern AuthInfo*	auth_userpasswd(char *user, char *passwd);
143 extern UserPasswd*	auth_getuserpasswd(AuthGetkey *getkey, char*, ...);
144 extern AuthInfo*	auth_getinfo(AuthRpc *rpc);
145 extern AuthRpc*		auth_allocrpc(int afd);
146 extern Attr*		auth_attr(AuthRpc *rpc);
147 extern void		auth_freerpc(AuthRpc *rpc);
148 extern uint		auth_rpc(AuthRpc *rpc, char *verb, void *a, int n);
149 extern int		auth_wep(char*, char*, ...);
150 /*
151 #pragma varargck argpos auth_proxy 3
152 #pragma varargck argpos auth_challenge 1
153 #pragma varargck argpos auth_respond 3
154 #pragma varargck argpos auth_getuserpasswd 2
155 */
156 #ifdef __cplusplus
157 }
158 #endif
159 #endif