summaryrefslogtreecommitdiffstats
path: root/src/responder/common/responder.h
blob: f6784e916bbf2b7f191d2a53b6670c2a29adb996 (plain)
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
/*
   SSSD

   SSS Client Responder, header file

   Copyright (C) Simo Sorce <ssorce@redhat.com>	2008

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef __SSS_RESPONDER_H__
#define __SSS_RESPONDER_H__

#include <stdint.h>
#include <sys/un.h>
#include <pcre.h>
#include "config.h"
#include "talloc.h"
#include "tevent.h"
#include "ldb.h"
#include "dhash.h"
#include "sbus/sssd_dbus.h"
#include "sss_client/sss_cli.h"

extern hash_table_t *dp_requests;

/* if there is a provider other than the special local */
#define NEED_CHECK_PROVIDER(provider) \
    (provider != NULL && strcmp(provider, "local") != 0)

/* needed until nsssrv.h is updated */
struct cli_request {

    /* original request from the wire */
    struct sss_packet *in;

    /* reply data */
    struct sss_packet *out;
};

struct cli_protocol_version {
    uint32_t version;
    const char *date;
    const char *description;
};

struct be_conn {
    struct be_conn *next;
    struct be_conn *prev;

    const char *cli_name;
    struct sss_domain_info *domain;

    char *sbus_address;
    struct sbus_interface *intf;
    struct sbus_connection *conn;
};

struct resp_ctx {
    struct tevent_context *ev;
    struct tevent_fd *lfde;
    int lfd;
    struct tevent_fd *priv_lfde;
    int priv_lfd;
    struct confdb_ctx *cdb;
    const char *sock_name;
    const char *priv_sock_name;

    struct sbus_connection *mon_conn;
    struct be_conn *be_conns;

    struct sss_domain_info *domains;
    struct sysdb_ctx_list *db_list;

    struct sss_cmd_table *sss_cmds;
    const char *sss_pipe_name;
    const char *confdb_service_path;

    struct sss_names_ctx *names;

    hash_table_t *dp_request_table;

    void *pvt_ctx;
};

/* Needed for the NSS responder */
struct getent_ref_tracker {
    void *pvt;
};

struct cli_ctx {
    struct tevent_context *ev;
    struct resp_ctx *rctx;
    int cfd;
    struct tevent_fd *cfde;
    struct sockaddr_un addr;
    struct cli_request *creq;
    struct cli_protocol_version *cli_protocol_version;
    int priv;
    int32_t client_euid;
    int32_t client_egid;
    int32_t client_pid;

    int pwent_dom_idx;
    int pwent_cur;

    int grent_dom_idx;
    int grent_cur;

    char *netgr_name;
    int netgrent_cur;

    time_t pam_timeout;
};

struct sss_cmd_table {
    enum sss_cli_command cmd;
    int (*fn)(struct cli_ctx *cctx);
};

/* responder_common.c */
int sss_process_init(TALLOC_CTX *mem_ctx,
                     struct tevent_context *ev,
                     struct confdb_ctx *cdb,
                     struct sss_cmd_table sss_cmds[],
                     const char *sss_pipe_name,
                     const char *sss_priv_pipe_name,
                     const char *confdb_service_path,
                     const char *svc_name,
                     uint16_t svc_version,
                     struct sbus_interface *monitor_intf,
                     const char *cli_name,
                     struct sbus_interface *dp_intf,
                     struct resp_ctx **responder_ctx);

int sss_parse_name(TALLOC_CTX *memctx,
                   struct sss_names_ctx *snctx,
                   const char *orig, char **domain, char **name);

int sss_dp_get_domain_conn(struct resp_ctx *rctx, const char *domain,
                           struct be_conn **_conn);
struct sss_domain_info *
responder_get_domain(struct sss_domain_info *doms, const char *domain);

/* responder_cmd.c */
int sss_cmd_execute(struct cli_ctx *cctx, struct sss_cmd_table *sss_cmds);
void sss_cmd_done(struct cli_ctx *cctx, void *freectx);
int sss_cmd_get_version(struct cli_ctx *cctx);
struct cli_protocol_version *register_cli_protocol_version(void);

#define SSS_DP_USER 1
#define SSS_DP_GROUP 2
#define SSS_DP_INITGROUPS 3
#define SSS_DP_NETGR 4

typedef void (*sss_dp_callback_t)(uint16_t err_maj, uint32_t err_min,
                                  const char *err_msg, void *ptr);

struct dp_callback_ctx {
    sss_dp_callback_t callback;
    void *ptr;

    void *mem_ctx;
    struct cli_ctx *cctx;
};

void handle_requests_after_reconnect(void);

int responder_logrotate(DBusMessage *message,
                        struct sbus_connection *conn);

/* Send a request to the data provider
 * Once this function is called, the communication
 * with the data provider will always run to
 * completion. Freeing the returned tevent_req will
 * cancel the notification of completion, but not
 * the data provider action.
 */
struct tevent_req *
sss_dp_get_account_send(TALLOC_CTX *mem_ctx,
                        struct resp_ctx *rctx,
                        struct sss_domain_info *dom,
                        bool fast_reply,
                        int type,
                        const char *opt_name,
                        uint32_t opt_id);
errno_t
sss_dp_get_account_recv(TALLOC_CTX *mem_ctx,
                        struct tevent_req *req,
                        dbus_uint16_t *err_maj,
                        dbus_uint32_t *err_min,
                        char **err_msg);

bool sss_utf8_check(const uint8_t *s, size_t n);

#endif /* __SSS_RESPONDER_H__ */