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
|
#include <sys/time.h>
#include <time.h>
#include "util/util.h"
#include "responder/common/responder_packet.h"
#include "responder/common/responder_common.h"
#include "providers/data_provider.h"
#include "sbus/sbus_client.h"
#include "providers/dp_sbus.h"
struct sss_dp_pvt_ctx {
struct nss_ctx *nctx;
struct sbus_method *methods;
time_t last_retry;
int retries;
};
static int sss_dp_conn_destructor(void *data);
static void sss_dp_reconnect(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval tv, void *data);
static void sss_dp_conn_reconnect(struct sss_dp_pvt_ctx *pvt)
{
struct nss_ctx *nctx;
struct tevent_timer *te;
struct timeval tv;
struct sbus_method_ctx *sm_ctx;
char *sbus_address;
time_t now;
int ret;
now = time(NULL);
/* reset retry if last reconnect was > 60 sec. ago */
if (pvt->last_retry + 60 < now) pvt->retries = 0;
if (pvt->retries >= 3) {
DEBUG(4, ("Too many reconnect retries! Giving up\n"));
return;
}
pvt->last_retry = now;
pvt->retries++;
nctx = pvt->nctx;
ret = dp_get_sbus_address(nctx, nctx->cdb, &sbus_address);
if (ret != EOK) {
DEBUG(0, ("Could not locate data provider address.\n"));
return;
}
ret = dp_init_sbus_methods(nctx, pvt->methods, &sm_ctx);
if (ret != EOK) {
DEBUG(0, ("Could not initialize SBUS methods.\n"));
return;
}
ret = sbus_client_init(nctx, nctx->ev,
sbus_address, sm_ctx,
pvt, sss_dp_conn_destructor,
&nctx->dp_ctx);
if (ret != EOK) {
DEBUG(4, ("Failed to reconnect [%d(%s)]!\n", ret, strerror(ret)));
tv.tv_sec = now +5;
tv.tv_usec = 0;
te = tevent_add_timer(nctx->ev, nctx, tv, sss_dp_reconnect, pvt);
if (te == NULL) {
DEBUG(4, ("Failed to add timed event! Giving up\n"));
} else {
DEBUG(4, ("Retrying in 5 seconds\n"));
}
}
}
static void sss_dp_reconnect(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval tv, void *data)
{
struct sss_dp_pvt_ctx *pvt;
pvt = talloc_get_type(data, struct sss_dp_pvt_ctx);
sss_dp_conn_reconnect(pvt);
}
int sss_dp_conn_destructor(void *data)
{
struct sss_dp_pvt_ctx *pvt;
struct sbus_conn_ctx *scon;
scon = talloc_get_type(data, struct sbus_conn_ctx);
if (!scon) return 0;
/* if this is a regular disconnect just quit */
if (sbus_conn_disconnecting(scon)) return 0;
pvt = talloc_get_type(sbus_conn_get_private_data(scon),
struct sss_dp_pvt_ctx);
if (pvt) return 0;
sss_dp_conn_reconnect(pvt);
return 0;
}
int sss_dp_init(struct nss_ctx *nctx, struct sbus_method *dp_methods)
{
struct sss_dp_pvt_ctx *pvt;
pvt = talloc_zero(nctx, struct sss_dp_pvt_ctx);
if (!pvt) return ENOMEM;
pvt->nctx = nctx;
pvt->methods = dp_methods;
sss_dp_conn_reconnect(pvt);
return EOK;
}
|
