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
|
/*
Unix SMB/Netbios implementation.
Version 1.9.
NBT netbios library routines
Copyright (C) Andrew Tridgell 1994-1997
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Module name: namedbresp.c
*/
#include "includes.h"
extern int ClientNMB;
extern struct subnet_record *subnetlist;
extern int DEBUGLEVEL;
extern pstring scope;
extern pstring myname;
extern struct in_addr ipzero;
int num_response_packets = 0;
/***************************************************************************
add an expected response record into the list
**************************************************************************/
void add_response_record(struct subnet_record *d,
struct response_record *n)
{
struct response_record *n2;
if (!d) return;
num_response_packets++; /* count of total number of packets still around */
DEBUG(4,("adding response record id:%d num_records:%d\n",
n->response_id, num_response_packets));
if (!d->responselist)
{
d->responselist = n;
n->prev = NULL;
n->next = NULL;
return;
}
for (n2 = d->responselist; n2->next; n2 = n2->next) ;
n2->next = n;
n->next = NULL;
n->prev = n2;
}
/***************************************************************************
remove an expected response record from the list
**************************************************************************/
void remove_response_record(struct subnet_record *d,
struct response_record *n)
{
if (!d) return;
if (n->prev) n->prev->next = n->next;
if (n->next) n->next->prev = n->prev;
if (d->responselist == n) d->responselist = n->next;
free(n);
num_response_packets--; /* count of total number of packets still around */
}
/****************************************************************************
create a name query response record
**************************************************************************/
struct response_record *make_response_queue_record(enum state_type state,
int id,uint16 fd,
int quest_type, char *name,int type, int nb_flags, time_t ttl,
int server_type, char *my_name, char *my_comment,
BOOL bcast,BOOL recurse,
struct in_addr send_ip, struct in_addr reply_to_ip,
int reply_id)
{
struct response_record *n;
if (!name || !name[0]) return NULL;
if (!(n = (struct response_record *)malloc(sizeof(*n))))
return(NULL);
bzero((char *)n, sizeof(*n));
n->response_id = id;
n->state = state;
n->fd = fd;
n->quest_type = quest_type;
make_nmb_name(&n->name, name, type, scope);
n->nb_flags = nb_flags;
n->ttl = ttl;
n->server_type = server_type;
n->bcast = bcast;
n->recurse = recurse;
n->send_ip = send_ip;
n->reply_to_ip = reply_to_ip;
n->reply_id = reply_id;
if(my_name)
StrnCpy(n->my_name, my_name, sizeof(n->my_name)-1);
else
*n->my_name = 0;
if(my_comment)
StrnCpy(n->my_comment, my_comment, sizeof(n->my_comment)-1);
else
*n->my_comment = 0;
n->repeat_interval = 1; /* XXXX should be in ms */
n->repeat_count = 3; /* 3 retries */
n->repeat_time = time(NULL) + n->repeat_interval; /* initial retry time */
n->num_msgs = 0;
return n;
}
/****************************************************************************
find a response in a subnet's name query response list.
**************************************************************************/
struct response_record *find_response_record(struct subnet_record **d,
uint16 id)
{
struct response_record *n;
if (!d) return NULL;
for ((*d) = FIRST_SUBNET; (*d); (*d) = NEXT_SUBNET_INCLUDING_WINS(*d))
{
for (n = (*d)->responselist; n; n = n->next)
{
if (n->response_id == id) {
DEBUG(4, ("found response record on %s: %d\n",
inet_ntoa((*d)->bcast_ip), id));
return n;
}
}
}
*d = NULL;
return NULL;
}
|
