1 | /*
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2 | Unix SMB/CIFS implementation.
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3 | NBT netbios routines and daemon - version 2
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4 | Copyright (C) Andrew Tridgell 1994-1998
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5 | Copyright (C) Luke Kenneth Casson Leighton 1994-1998
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6 | Copyright (C) Jeremy Allison 1994-2003
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7 |
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8 | This program is free software; you can redistribute it and/or modify
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9 | it under the terms of the GNU General Public License as published by
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10 | the Free Software Foundation; either version 3 of the License, or
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11 | (at your option) any later version.
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12 |
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13 | This program is distributed in the hope that it will be useful,
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | GNU General Public License for more details.
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17 |
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18 | You should have received a copy of the GNU General Public License
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19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 |
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21 | This file contains all the code to process NetBIOS requests coming
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22 | in on port 137. It does not deal with the code needed to service
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23 | WINS server requests, but only broadcast and unicast requests.
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24 |
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25 | */
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26 |
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27 | #include "includes.h"
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28 |
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29 | /****************************************************************************
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30 | Send a name release response.
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31 | **************************************************************************/
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32 |
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33 | static void send_name_release_response(int rcode, struct packet_struct *p)
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34 | {
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35 | struct nmb_packet *nmb = &p->packet.nmb;
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36 | char rdata[6];
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37 |
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38 | memcpy(&rdata[0], &nmb->additional->rdata[0], 6);
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39 |
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40 | reply_netbios_packet(p, /* Packet to reply to. */
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41 | rcode, /* Result code. */
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42 | NMB_REL, /* nmbd type code. */
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43 | NMB_NAME_RELEASE_OPCODE, /* opcode. */
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44 | 0, /* ttl. */
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45 | rdata, /* data to send. */
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46 | 6); /* data length. */
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47 | }
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48 |
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49 | /****************************************************************************
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50 | Process a name release packet on a broadcast subnet.
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51 | Ignore it if it's not one of our names.
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52 | ****************************************************************************/
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53 |
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54 | void process_name_release_request(struct subnet_record *subrec,
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55 | struct packet_struct *p)
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56 | {
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57 | struct nmb_packet *nmb = &p->packet.nmb;
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58 | struct in_addr owner_ip;
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59 | struct nmb_name *question = &nmb->question.question_name;
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60 | unstring qname;
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61 | bool bcast = nmb->header.nm_flags.bcast;
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62 | uint16 nb_flags = get_nb_flags(nmb->additional->rdata);
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63 | bool group = (nb_flags & NB_GROUP) ? True : False;
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64 | struct name_record *namerec;
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65 | int rcode = 0;
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66 |
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67 | putip((char *)&owner_ip,&nmb->additional->rdata[2]);
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68 |
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69 | if(!bcast) {
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70 | /* We should only get broadcast name release packets here.
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71 | Anyone trying to release unicast should be going to a WINS
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72 | server. If the code gets here, then either we are not a wins
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73 | server and they sent it anyway, or we are a WINS server and
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74 | the request was malformed. Either way, log an error here.
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75 | and send an error reply back.
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76 | */
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77 | DEBUG(0,("process_name_release_request: unicast name release request \
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78 | received for name %s from IP %s on subnet %s. Error - should be sent to WINS server\n",
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79 | nmb_namestr(question), inet_ntoa(owner_ip), subrec->subnet_name));
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80 |
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81 | send_name_release_response(FMT_ERR, p);
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82 | return;
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83 | }
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84 |
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85 | DEBUG(3,("process_name_release_request: Name release on name %s, \
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86 | subnet %s from owner IP %s\n",
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87 | nmb_namestr(&nmb->question.question_name),
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88 | subrec->subnet_name, inet_ntoa(owner_ip)));
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89 |
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90 | /* If someone is releasing a broadcast group name, just ignore it. */
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91 | if( group && !ismyip_v4(owner_ip) )
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92 | return;
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93 |
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94 | /*
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95 | * Code to work around a bug in FTP OnNet software NBT implementation.
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96 | * They do a broadcast name release for WORKGROUP<0> and WORKGROUP<1e>
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97 | * names and *don't set the group bit* !!!!!
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98 | */
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99 |
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100 | pull_ascii_nstring(qname, sizeof(qname), question->name);
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101 | if( !group && !ismyip_v4(owner_ip) && strequal(qname, lp_workgroup()) &&
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102 | ((question->name_type == 0x0) || (question->name_type == 0x1e))) {
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103 | DEBUG(6,("process_name_release_request: FTP OnNet bug workaround. Ignoring \
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104 | group release name %s from IP %s on subnet %s with no group bit set.\n",
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105 | nmb_namestr(question), inet_ntoa(owner_ip), subrec->subnet_name ));
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106 | return;
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107 | }
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108 |
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109 | namerec = find_name_on_subnet(subrec, question, FIND_ANY_NAME);
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110 |
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111 | /* We only care about someone trying to release one of our names. */
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112 | if( namerec && ( (namerec->data.source == SELF_NAME)
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113 | || (namerec->data.source == PERMANENT_NAME) ) ) {
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114 | rcode = ACT_ERR;
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115 | DEBUG(0, ("process_name_release_request: Attempt to release name %s from IP %s \
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116 | on subnet %s being rejected as it is one of our names.\n",
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117 | nmb_namestr(&nmb->question.question_name), inet_ntoa(owner_ip), subrec->subnet_name));
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118 | }
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119 |
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120 | if(rcode == 0)
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121 | return;
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122 |
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123 | /* Send a NAME RELEASE RESPONSE (pos/neg) see rfc1002.txt 4.2.10-11 */
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124 | send_name_release_response(rcode, p);
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125 | }
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126 |
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127 | /****************************************************************************
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128 | Send a name registration response.
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129 | **************************************************************************/
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130 |
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131 | static void send_name_registration_response(int rcode, int ttl, struct packet_struct *p)
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132 | {
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133 | struct nmb_packet *nmb = &p->packet.nmb;
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134 | char rdata[6];
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135 |
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136 | memcpy(&rdata[0], &nmb->additional->rdata[0], 6);
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137 |
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138 | reply_netbios_packet(p, /* Packet to reply to. */
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139 | rcode, /* Result code. */
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140 | NMB_REG, /* nmbd type code. */
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141 | NMB_NAME_REG_OPCODE, /* opcode. */
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142 | ttl, /* ttl. */
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143 | rdata, /* data to send. */
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144 | 6); /* data length. */
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145 | }
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146 |
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147 | /****************************************************************************
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148 | Process a name refresh request on a broadcast subnet.
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149 | **************************************************************************/
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150 |
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151 | void process_name_refresh_request(struct subnet_record *subrec,
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152 | struct packet_struct *p)
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153 | {
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154 | struct nmb_packet *nmb = &p->packet.nmb;
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155 | struct nmb_name *question = &nmb->question.question_name;
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156 | bool bcast = nmb->header.nm_flags.bcast;
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157 | struct in_addr from_ip;
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158 |
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159 | putip((char *)&from_ip,&nmb->additional->rdata[2]);
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160 |
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161 | if(!bcast) {
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162 | /* We should only get broadcast name refresh packets here.
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163 | Anyone trying to refresh unicast should be going to a WINS
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164 | server. If the code gets here, then either we are not a wins
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165 | server and they sent it anyway, or we are a WINS server and
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166 | the request was malformed. Either way, log an error here.
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167 | and send an error reply back.
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168 | */
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169 | DEBUG(0,("process_name_refresh_request: unicast name registration request \
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170 | received for name %s from IP %s on subnet %s.\n",
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171 | nmb_namestr(question), inet_ntoa(from_ip), subrec->subnet_name));
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172 | DEBUG(0,("Error - should be sent to WINS server\n"));
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173 |
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174 | send_name_registration_response(FMT_ERR, 0, p);
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175 | return;
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176 | }
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177 |
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178 | /* Just log a message. We really don't care about broadcast name refreshes. */
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179 |
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180 | DEBUG(3,("process_name_refresh_request: Name refresh for name %s \
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181 | IP %s on subnet %s\n", nmb_namestr(question), inet_ntoa(from_ip), subrec->subnet_name));
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182 | }
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183 |
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184 | /****************************************************************************
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185 | Process a name registration request on a broadcast subnet.
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186 | **************************************************************************/
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187 |
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188 | void process_name_registration_request(struct subnet_record *subrec,
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189 | struct packet_struct *p)
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190 | {
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191 | struct nmb_packet *nmb = &p->packet.nmb;
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192 | struct nmb_name *question = &nmb->question.question_name;
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193 | bool bcast = nmb->header.nm_flags.bcast;
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194 | uint16 nb_flags = get_nb_flags(nmb->additional->rdata);
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195 | bool group = (nb_flags & NB_GROUP) ? True : False;
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196 | struct name_record *namerec = NULL;
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197 | int ttl = nmb->additional->ttl;
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198 | struct in_addr from_ip;
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199 |
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200 | putip((char *)&from_ip,&nmb->additional->rdata[2]);
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201 |
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202 | if(!bcast) {
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203 | /* We should only get broadcast name registration packets here.
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204 | Anyone trying to register unicast should be going to a WINS
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205 | server. If the code gets here, then either we are not a wins
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206 | server and they sent it anyway, or we are a WINS server and
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207 | the request was malformed. Either way, log an error here.
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208 | and send an error reply back.
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209 | */
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210 | DEBUG(0,("process_name_registration_request: unicast name registration request \
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211 | received for name %s from IP %s on subnet %s. Error - should be sent to WINS server\n",
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212 | nmb_namestr(question), inet_ntoa(from_ip), subrec->subnet_name));
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213 |
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214 | send_name_registration_response(FMT_ERR, 0, p);
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215 | return;
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216 | }
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217 |
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218 | DEBUG(3,("process_name_registration_request: Name registration for name %s \
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219 | IP %s on subnet %s\n", nmb_namestr(question), inet_ntoa(from_ip), subrec->subnet_name));
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220 |
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221 | /* See if the name already exists. */
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222 | namerec = find_name_on_subnet(subrec, question, FIND_ANY_NAME);
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223 |
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224 | /*
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225 | * If the name being registered exists and is a WINS_PROXY_NAME
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226 | * then delete the WINS proxy name entry so we don't reply erroneously
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227 | * later to queries.
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228 | */
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229 |
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230 | if((namerec != NULL) && (namerec->data.source == WINS_PROXY_NAME)) {
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231 | remove_name_from_namelist( subrec, namerec );
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232 | namerec = NULL;
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233 | }
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234 |
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235 | if (!group) {
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236 | /* Unique name. */
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237 |
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238 | if( (namerec != NULL)
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239 | && ( (namerec->data.source == SELF_NAME)
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240 | || (namerec->data.source == PERMANENT_NAME)
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241 | || NAME_GROUP(namerec) ) ) {
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242 | /* No-one can register one of Samba's names, nor can they
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243 | register a name that's a group name as a unique name */
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244 |
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245 | send_name_registration_response(ACT_ERR, 0, p);
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246 | return;
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247 | } else if(namerec != NULL) {
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248 | /* Update the namelist record with the new information. */
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249 | namerec->data.ip[0] = from_ip;
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250 | update_name_ttl(namerec, ttl);
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251 |
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252 | DEBUG(3,("process_name_registration_request: Updated name record %s \
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253 | with IP %s on subnet %s\n",nmb_namestr(&namerec->name),inet_ntoa(from_ip), subrec->subnet_name));
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254 | return;
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255 | }
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256 | } else {
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257 | /* Group name. */
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258 |
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259 | if( (namerec != NULL)
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260 | && !NAME_GROUP(namerec)
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261 | && ( (namerec->data.source == SELF_NAME)
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262 | || (namerec->data.source == PERMANENT_NAME) ) ) {
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263 | /* Disallow group names when we have a unique name. */
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264 | send_name_registration_response(ACT_ERR, 0, p);
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265 | return;
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266 | }
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267 | }
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268 | }
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269 |
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270 | /****************************************************************************
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271 | This is used to sort names for a name status into a sensible order.
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272 | We put our own names first, then in alphabetical order.
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273 | **************************************************************************/
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274 |
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275 | static int status_compare(char *n1,char *n2)
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276 | {
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277 | unstring name1, name2;
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278 | int l1,l2,l3;
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279 |
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280 | memset(name1, '\0', sizeof(name1));
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281 | memset(name2, '\0', sizeof(name2));
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282 | pull_ascii_nstring(name1, sizeof(name1), n1);
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283 | pull_ascii_nstring(name2, sizeof(name2), n2);
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284 | n1 = name1;
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285 | n2 = name2;
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286 |
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287 | /* It's a bit tricky because the names are space padded */
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288 | for (l1=0;l1<15 && n1[l1] && n1[l1] != ' ';l1++)
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289 | ;
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290 | for (l2=0;l2<15 && n2[l2] && n2[l2] != ' ';l2++)
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291 | ;
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292 | l3 = strlen(global_myname());
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293 |
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294 | if ((l1==l3) && strncmp(n1,global_myname(),l3) == 0 &&
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295 | (l2!=l3 || strncmp(n2,global_myname(),l3) != 0))
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296 | return -1;
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297 |
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298 | if ((l2==l3) && strncmp(n2,global_myname(),l3) == 0 &&
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299 | (l1!=l3 || strncmp(n1,global_myname(),l3) != 0))
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300 | return 1;
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301 |
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302 | return memcmp(n1,n2,sizeof(name1));
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303 | }
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304 |
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305 | /****************************************************************************
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306 | Process a node status query
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307 | ****************************************************************************/
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308 |
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309 | void process_node_status_request(struct subnet_record *subrec, struct packet_struct *p)
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310 | {
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311 | struct nmb_packet *nmb = &p->packet.nmb;
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312 | unstring qname;
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313 | int ques_type = nmb->question.question_name.name_type;
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314 | char rdata[MAX_DGRAM_SIZE];
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315 | char *countptr, *buf, *bufend, *buf0;
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316 | int names_added,i;
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317 | struct name_record *namerec = NULL;
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318 |
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319 | pull_ascii_nstring(qname, sizeof(qname), nmb->question.question_name.name);
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320 |
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321 | DEBUG(3,("process_node_status_request: status request for name %s from IP %s on \
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322 | subnet %s.\n", nmb_namestr(&nmb->question.question_name), inet_ntoa(p->ip), subrec->subnet_name));
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323 |
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324 | if(find_name_on_subnet(subrec, &nmb->question.question_name, FIND_SELF_NAME) == 0) {
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325 | DEBUG(1,("process_node_status_request: status request for name %s from IP %s on \
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326 | subnet %s - name not found.\n", nmb_namestr(&nmb->question.question_name),
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327 | inet_ntoa(p->ip), subrec->subnet_name));
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328 |
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329 | return;
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330 | }
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331 |
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332 | /* this is not an exact calculation. the 46 is for the stats buffer
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333 | and the 60 is to leave room for the header etc */
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334 | bufend = &rdata[MAX_DGRAM_SIZE-1] - (18 + 46 + 60);
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335 | countptr = buf = rdata;
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336 | buf += 1;
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337 | buf0 = buf;
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338 |
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339 | names_added = 0;
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340 |
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341 | namerec = subrec->namelist;
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342 |
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343 | while (buf < bufend) {
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344 | if( (namerec->data.source == SELF_NAME) || (namerec->data.source == PERMANENT_NAME) ) {
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345 | int name_type = namerec->name.name_type;
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346 | unstring name;
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347 |
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348 | pull_ascii_nstring(name, sizeof(name), namerec->name.name);
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349 | strupper_m(name);
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350 | if (!strequal(name,"*") &&
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351 | !strequal(name,"__SAMBA__") &&
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352 | (name_type < 0x1b || name_type >= 0x20 ||
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353 | ques_type < 0x1b || ques_type >= 0x20 ||
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354 | strequal(qname, name))) {
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355 | /* Start with the name. */
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356 | size_t len;
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357 | push_ascii_nstring(buf, name);
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358 | len = strlen(buf);
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359 | memset(buf + len, ' ', MAX_NETBIOSNAME_LEN - len - 1);
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360 | buf[MAX_NETBIOSNAME_LEN - 1] = '\0';
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361 |
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362 | /* Put the name type and netbios flags in the buffer. */
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363 |
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364 | buf[15] = name_type;
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365 | set_nb_flags( &buf[16],namerec->data.nb_flags );
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366 | buf[16] |= NB_ACTIVE; /* all our names are active */
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367 |
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368 | buf += 18;
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369 |
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370 | names_added++;
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371 | }
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372 | }
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373 |
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374 | /* Remove duplicate names. */
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375 | if (names_added > 1) {
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376 | qsort( buf0, names_added, 18, QSORT_CAST status_compare );
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377 | }
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378 |
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379 | for( i=1; i < names_added ; i++ ) {
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380 | if (memcmp(buf0 + 18*i,buf0 + 18*(i-1),16) == 0) {
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381 | names_added--;
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382 | if (names_added == i)
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383 | break;
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384 | memmove(buf0 + 18*i,buf0 + 18*(i+1),18*(names_added-i));
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385 | i--;
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386 | }
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387 | }
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388 |
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389 | buf = buf0 + 18*names_added;
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390 |
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391 | namerec = namerec->next;
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392 |
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393 | if (!namerec) {
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394 | /* End of the subnet specific name list. Now
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395 | add the names on the unicast subnet . */
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396 | struct subnet_record *uni_subrec = unicast_subnet;
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397 |
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398 | if (uni_subrec != subrec) {
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399 | subrec = uni_subrec;
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400 | namerec = subrec->namelist;
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401 | }
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402 | }
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403 | if (!namerec)
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404 | break;
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405 |
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406 | }
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407 |
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408 | SCVAL(countptr,0,names_added);
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409 |
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410 | /* We don't send any stats as they could be used to attack
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411 | the protocol. */
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412 | memset(buf,'\0',46);
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413 |
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414 | buf += 46;
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415 |
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416 | /* Send a NODE STATUS RESPONSE */
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417 | reply_netbios_packet(p, /* Packet to reply to. */
|
---|
418 | 0, /* Result code. */
|
---|
419 | NMB_STATUS, /* nmbd type code. */
|
---|
420 | NMB_NAME_QUERY_OPCODE, /* opcode. */
|
---|
421 | 0, /* ttl. */
|
---|
422 | rdata, /* data to send. */
|
---|
423 | PTR_DIFF(buf,rdata)); /* data length. */
|
---|
424 | }
|
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425 |
|
---|
426 |
|
---|
427 | /***************************************************************************
|
---|
428 | Process a name query.
|
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429 |
|
---|
430 | For broadcast name queries:
|
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431 |
|
---|
432 | - Only reply if the query is for one of YOUR names.
|
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433 | - NEVER send a negative response to a broadcast query.
|
---|
434 |
|
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435 | ****************************************************************************/
|
---|
436 |
|
---|
437 | void process_name_query_request(struct subnet_record *subrec, struct packet_struct *p)
|
---|
438 | {
|
---|
439 | struct nmb_packet *nmb = &p->packet.nmb;
|
---|
440 | struct nmb_name *question = &nmb->question.question_name;
|
---|
441 | int name_type = question->name_type;
|
---|
442 | bool bcast = nmb->header.nm_flags.bcast;
|
---|
443 | int ttl=0;
|
---|
444 | int rcode = 0;
|
---|
445 | char *prdata = NULL;
|
---|
446 | char rdata[6];
|
---|
447 | bool success = False;
|
---|
448 | struct name_record *namerec = NULL;
|
---|
449 | int reply_data_len = 0;
|
---|
450 | int i;
|
---|
451 |
|
---|
452 | DEBUG(3,("process_name_query_request: Name query from %s on subnet %s for name %s\n",
|
---|
453 | inet_ntoa(p->ip), subrec->subnet_name, nmb_namestr(question)));
|
---|
454 |
|
---|
455 | /* Look up the name in the cache - if the request is a broadcast request that
|
---|
456 | came from a subnet we don't know about then search all the broadcast subnets
|
---|
457 | for a match (as we don't know what interface the request came in on). */
|
---|
458 |
|
---|
459 | if(subrec == remote_broadcast_subnet)
|
---|
460 | namerec = find_name_for_remote_broadcast_subnet( question, FIND_ANY_NAME);
|
---|
461 | else
|
---|
462 | namerec = find_name_on_subnet(subrec, question, FIND_ANY_NAME);
|
---|
463 |
|
---|
464 | /* Check if it is a name that expired */
|
---|
465 | if (namerec &&
|
---|
466 | ((namerec->data.death_time != PERMANENT_TTL) &&
|
---|
467 | (namerec->data.death_time < p->timestamp))) {
|
---|
468 | DEBUG(5,("process_name_query_request: expired name %s\n", nmb_namestr(&namerec->name)));
|
---|
469 | namerec = NULL;
|
---|
470 | }
|
---|
471 |
|
---|
472 | if (namerec) {
|
---|
473 | /*
|
---|
474 | * Always respond to unicast queries.
|
---|
475 | * Don't respond to broadcast queries unless the query is for
|
---|
476 | * a name we own, a Primary Domain Controller name, or a WINS_PROXY
|
---|
477 | * name with type 0 or 0x20. WINS_PROXY names are only ever added
|
---|
478 | * into the namelist if we were configured as a WINS proxy.
|
---|
479 | */
|
---|
480 |
|
---|
481 | if (!bcast ||
|
---|
482 | (bcast && ((name_type == 0x1b) ||
|
---|
483 | (namerec->data.source == SELF_NAME) ||
|
---|
484 | (namerec->data.source == PERMANENT_NAME) ||
|
---|
485 | ((namerec->data.source == WINS_PROXY_NAME) &&
|
---|
486 | ((name_type == 0) || (name_type == 0x20)))))) {
|
---|
487 | /* The requested name is a directed query, or it's SELF or PERMANENT or WINS_PROXY,
|
---|
488 | or it's a Domain Master type. */
|
---|
489 |
|
---|
490 | /*
|
---|
491 | * If this is a WINS_PROXY_NAME, then ceck that none of the IP
|
---|
492 | * addresses we are returning is on the same broadcast subnet
|
---|
493 | * as the requesting packet. If it is then don't reply as the
|
---|
494 | * actual machine will be replying also and we don't want two
|
---|
495 | * replies to a broadcast query.
|
---|
496 | */
|
---|
497 |
|
---|
498 | if (namerec->data.source == WINS_PROXY_NAME) {
|
---|
499 | for( i = 0; i < namerec->data.num_ips; i++) {
|
---|
500 | if (same_net_v4(namerec->data.ip[i], subrec->myip, subrec->mask_ip)) {
|
---|
501 | DEBUG(5,("process_name_query_request: name %s is a WINS proxy name and is also on the same subnet (%s) as the requestor. Not replying.\n",
|
---|
502 | nmb_namestr(&namerec->name), subrec->subnet_name ));
|
---|
503 | return;
|
---|
504 | }
|
---|
505 | }
|
---|
506 | }
|
---|
507 |
|
---|
508 | ttl = (namerec->data.death_time != PERMANENT_TTL) ?
|
---|
509 | namerec->data.death_time - p->timestamp : lp_max_ttl();
|
---|
510 |
|
---|
511 | /* Copy all known ip addresses into the return data. */
|
---|
512 | /* Optimise for the common case of one IP address so
|
---|
513 | we don't need a malloc. */
|
---|
514 |
|
---|
515 | if (namerec->data.num_ips == 1) {
|
---|
516 | prdata = rdata;
|
---|
517 | } else {
|
---|
518 | if ((prdata = (char *)SMB_MALLOC( namerec->data.num_ips * 6 )) == NULL) {
|
---|
519 | DEBUG(0,("process_name_query_request: malloc fail !\n"));
|
---|
520 | return;
|
---|
521 | }
|
---|
522 | }
|
---|
523 |
|
---|
524 | for (i = 0; i < namerec->data.num_ips; i++) {
|
---|
525 | set_nb_flags(&prdata[i*6],namerec->data.nb_flags);
|
---|
526 | putip((char *)&prdata[2+(i*6)], &namerec->data.ip[i]);
|
---|
527 | }
|
---|
528 |
|
---|
529 | sort_query_replies(prdata, i, p->ip);
|
---|
530 |
|
---|
531 | reply_data_len = namerec->data.num_ips * 6;
|
---|
532 | success = True;
|
---|
533 | }
|
---|
534 | }
|
---|
535 |
|
---|
536 | /*
|
---|
537 | * If a machine is broadcasting a name lookup request and we have lp_wins_proxy()
|
---|
538 | * set we should initiate a WINS query here. On success we add the resolved name
|
---|
539 | * into our namelist with a type of WINS_PROXY_NAME and then reply to the query.
|
---|
540 | */
|
---|
541 |
|
---|
542 | if(!success && (namerec == NULL) && we_are_a_wins_client() && lp_wins_proxy() &&
|
---|
543 | bcast && (subrec != remote_broadcast_subnet)) {
|
---|
544 | make_wins_proxy_name_query_request( subrec, p, question );
|
---|
545 | return;
|
---|
546 | }
|
---|
547 |
|
---|
548 | if (!success && bcast) {
|
---|
549 | if(prdata != rdata)
|
---|
550 | SAFE_FREE(prdata);
|
---|
551 | return; /* Never reply with a negative response to broadcasts. */
|
---|
552 | }
|
---|
553 |
|
---|
554 | /*
|
---|
555 | * Final check. From observation, if a unicast packet is sent
|
---|
556 | * to a non-WINS server with the recursion desired bit set
|
---|
557 | * then never send a negative response.
|
---|
558 | */
|
---|
559 |
|
---|
560 | if(!success && !bcast && nmb->header.nm_flags.recursion_desired) {
|
---|
561 | if(prdata != rdata)
|
---|
562 | SAFE_FREE(prdata);
|
---|
563 | return;
|
---|
564 | }
|
---|
565 |
|
---|
566 | if (success) {
|
---|
567 | rcode = 0;
|
---|
568 | DEBUG(3,("OK\n"));
|
---|
569 | } else {
|
---|
570 | rcode = NAM_ERR;
|
---|
571 | DEBUG(3,("UNKNOWN\n"));
|
---|
572 | }
|
---|
573 |
|
---|
574 | /* See rfc1002.txt 4.2.13. */
|
---|
575 |
|
---|
576 | reply_netbios_packet(p, /* Packet to reply to. */
|
---|
577 | rcode, /* Result code. */
|
---|
578 | NMB_QUERY, /* nmbd type code. */
|
---|
579 | NMB_NAME_QUERY_OPCODE, /* opcode. */
|
---|
580 | ttl, /* ttl. */
|
---|
581 | prdata, /* data to send. */
|
---|
582 | reply_data_len); /* data length. */
|
---|
583 |
|
---|
584 | if(prdata != rdata)
|
---|
585 | SAFE_FREE(prdata);
|
---|
586 | }
|
---|