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|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SMB_NETBIOS_H_
#define _SMB_NETBIOS_H_
#include <stdio.h>
#include <synch.h>
#include <pthread.h>
#include <strings.h>
#include <netinet/in.h>
#include <smbsrv/libsmbns.h>
#include <smbsrv/smbinfo.h>
#include <smbsrv/netbios.h>
#define QUEUE_INSERT_TAIL(q, e) \
((e)->back) = (void *)((q)->back); \
((e)->forw) = (void *)(q); \
((q)->back->forw) = (void *)(e); \
((q)->back) = (void *)(e);
#define QUEUE_CLIP(e) \
(e)->forw->back = (e)->back; \
(e)->back->forw = (e)->forw; \
(e)->forw = 0; \
(e)->back = 0;
typedef enum {
NETBIOS_EVENT_START = 0,
NETBIOS_EVENT_STOP,
NETBIOS_EVENT_RESET,
NETBIOS_EVENT_NS_START,
NETBIOS_EVENT_NS_STOP,
NETBIOS_EVENT_DGM_START,
NETBIOS_EVENT_DGM_STOP,
NETBIOS_EVENT_BROWSER_START,
NETBIOS_EVENT_BROWSER_STOP,
NETBIOS_EVENT_TIMER_START,
NETBIOS_EVENT_TIMER_STOP,
NETBIOS_EVENT_ERROR,
NETBIOS_EVENT_DUMP
} netbios_event_t;
typedef enum {
NETBIOS_STATE_INIT = 0,
NETBIOS_STATE_RUNNING,
NETBIOS_STATE_CLOSING,
NETBIOS_STATE_ERROR
} netbios_state_t;
typedef struct {
pthread_t s_tid;
boolean_t s_up;
} netbios_svc_t;
typedef struct {
mutex_t nbs_mtx;
cond_t nbs_cv;
netbios_svc_t nbs_ns;
netbios_svc_t nbs_dgm;
netbios_svc_t nbs_browser;
netbios_svc_t nbs_timer;
netbios_state_t nbs_state;
uint32_t nbs_errors;
char *nbs_last_event;
} netbios_service_t;
extern char smb_node_type;
#define SMB_NODETYPE_B 'B'
#define SMB_NODETYPE_P 'P'
#define SMB_NODETYPE_M 'M'
#define SMB_NODETYPE_H 'H'
/*
* NAME service definitions
*/
#define ADDR_FLAG_INVALID 0x0000
#define ADDR_FLAG_VALID 0x0001
typedef struct addr_entry {
struct addr_entry *forw;
struct addr_entry *back;
uint32_t attributes;
uint32_t conflict_timer;
uint32_t refresh_ttl;
uint32_t ttl;
struct sockaddr_in sin;
int sinlen;
uint32_t flags;
} addr_entry_t;
/*
* The NODE_NAME ARRAY is an array of zero or more NUM_NAMES entries
* of NODE_NAME records. Each NODE_NAME entry represents an active
* name in the same NetBIOS scope as the requesting name in the
* local name table of the responder. RR_NAME is the requesting
* name.
*
* NODE_NAME Entry:
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | |
* +--- ---+
* | |
* +--- NETBIOS FORMAT NAME ---+
* | |
* +--- ---+
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NAME_FLAGS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* The NAME_FLAGS field:
*
* 1 1 1 1 1 1
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
* +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
* | G | ONT |DRG|CNF|ACT|PRM| RESERVED |
* +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
*
* The NAME_FLAGS field is defined as:
*
* Symbol Bit(s) Description:
*
* RESERVED 7-15 Reserved for future use. Must be zero (0).
* PRM 6 Permanent Name Flag. If one (1) then entry
* is for the permanent node name. Flag is zero
* (0) for all other names.
* ACT 5 Active Name Flag. All entries have this flag
* set to one (1).
* CNF 4 Conflict Flag. If one (1) then name on this
* node is in conflict.
* DRG 3 Deregister Flag. If one (1) then this name
* is in the process of being deleted.
* ONT 1,2 Owner Node Type:
* 00 = B node
* 01 = P node
* 10 = M node
* 11 = Reserved for future use
* G 0 Group Name Flag.
* name.
* If zero (0) then it is a UNIQUE NetBIOS name.
*/
typedef struct name_entry {
struct name_entry *forw;
struct name_entry *back;
unsigned char name[NETBIOS_NAME_SZ];
unsigned char scope[NETBIOS_DOMAIN_NAME_MAX];
unsigned short attributes;
struct addr_entry addr_list;
mutex_t mtx;
} name_entry_t;
struct name_question {
struct name_entry *name;
unsigned question_type;
unsigned question_class;
};
struct resource_record {
/*
* These two flags and address are contained within RDATA
* when rr_type==0x0020 (NB - NetBIOS general Name Service)
* and rr_class==0x01 (IN - Internet Class).
*/
struct name_entry *name;
unsigned short rr_type;
unsigned short rr_class;
uint32_t ttl;
unsigned short rdlength;
unsigned char *rdata;
};
struct name_packet {
unsigned short name_trn_id;
unsigned short info;
unsigned qdcount; /* question entries */
unsigned ancount; /* answer recs */
unsigned nscount; /* authority recs */
unsigned arcount; /* additional recs */
struct name_question *question;
struct resource_record *answer;
struct resource_record *authority;
struct resource_record *additional;
unsigned char block_data[4]; /* begining of space */
};
#define NAME_OPCODE_R 0x8000 /* RESPONSE flag: 1 bit */
#define NAME_OPCODE_OPCODE_MASK 0x7800 /* OPCODE Field: 4 bits */
#define NAME_OPCODE_QUERY 0x0000
#define NAME_OPCODE_REGISTRATION 0x2800
#define NAME_OPCODE_RELEASE 0x3000
#define NAME_OPCODE_WACK 0x3800
#define NAME_OPCODE_REFRESH 0x4000
#define NAME_OPCODE_MULTIHOME 0x7800
#define NAME_NM_FLAGS_AA 0x0400 /* Authoritative Answer:1 bit */
#define NAME_NM_FLAGS_TC 0x0200 /* Truncation: 1 bit */
#define NAME_NM_FLAGS_RD 0x0100 /* Recursion desired: 1 bit */
#define NAME_NM_FLAGS_RA 0x0080 /* Recursion available: 1 bit */
#define NAME_NM_FLAGS_x2 0x0040 /* reserved, mbz: 1 bit */
#define NAME_NM_FLAGS_x1 0x0020 /* reserved, mbz: 1 bit */
#define NAME_NM_FLAGS_B 0x0010 /* Broadcast: 1 bit */
#define NAME_RCODE_MASK 0x000f /* RCODE Field: 4 bits */
#define RCODE_FMT_ERR 0x0001
#define RCODE_SRV_ERR 0x0002
#define RCODE_NAM_ERR 0x0003
#define RCODE_IMP_ERR 0x0004
#define RCODE_RFS_ERR 0x0005
#define RCODE_ACT_ERR 0x0006
#define RCODE_CFT_ERR 0x0007
#define NM_FLAGS_UNICAST 0
#define NM_FLAGS_BROADCAST NAME_NM_FLAGS_B
#define PACKET_TYPE(x) ((x) & (NAME_OPCODE_R | NAME_OPCODE_OPCODE_MASK | \
NAME_NM_FLAGS_AA | NAME_NM_FLAGS_RD))
#define RCODE(x) ((x) & NAME_RCODE_MASK)
#define POSITIVE_RESPONSE(x) (RCODE(x) == 0)
#define NEGATIVE_RESPONSE(x) (RCODE(x) != 0)
#define END_NODE_CHALLENGE_REGISTRATION_REQUEST \
(NAME_OPCODE_REGISTRATION | NAME_NM_FLAGS_AA | NAME_NM_FLAGS_RD)
#define END_NODE_CHALLENGE_NAME_REGISTRATION_RESPONSE \
(NAME_OPCODE_R | END_NODE_CHALLENGE_REGISTRATION_REQUEST)
#define NAME_QUERY_REQUEST \
(NAME_OPCODE_QUERY | NAME_NM_FLAGS_RD)
#define NAME_QUERY_RESPONSE \
(NAME_OPCODE_R | NAME_QUERY_REQUEST | \
NAME_NM_FLAGS_AA | NAME_NM_FLAGS_RD)
#define NODE_STATUS_REQUEST \
(NAME_OPCODE_QUERY)
#define NODE_STATUS_RESPONSE \
(NAME_OPCODE_R | NODE_STATUS_REQUEST | NAME_NM_FLAGS_AA)
#define REDIRECT_NAME_QUERY_RESPONSE \
(NAME_OPCODE_R | NAME_QUERY_REQUEST | NAME_NM_FLAGS_RD)
#define NAME_REFRESH_REQUEST \
(NAME_OPCODE_REFRESH)
#define NAME_REGISTRATION_REQUEST \
(NAME_OPCODE_REGISTRATION | NAME_NM_FLAGS_RD)
#define NAME_MULTIHOME_REGISTRATION_REQUEST \
(NAME_OPCODE_MULTIHOME | NAME_NM_FLAGS_RD)
#define NAME_REGISTRATION_RESPONSE \
(NAME_OPCODE_R | NAME_REGISTRATION_REQUEST | NAME_NM_FLAGS_AA)
#define NAME_RELEASE_REQUEST \
(NAME_OPCODE_RELEASE)
#define NAME_RELEASE_RESPONSE \
(NAME_OPCODE_R | NAME_RELEASE_REQUEST | NAME_NM_FLAGS_AA)
#define WACK_RESPONSE \
(NAME_OPCODE_R | NAME_OPCODE_WACK | NAME_NM_FLAGS_AA)
#define NAME_QUESTION_TYPE_NB 0x0020
#define NAME_QUESTION_TYPE_NBSTAT 0x0021
#define NAME_QUESTION_CLASS_IN 0x0001
#define NAME_RR_TYPE_A 0x0001 /* IP Address */
#define NAME_RR_TYPE_NS 0x0002 /* Name Server */
#define NAME_RR_TYPE_NULL 0x000A /* NULL */
#define NAME_RR_TYPE_NB 0x0020 /* NetBIOS Name Service */
#define NAME_RR_TYPE_NBSTAT 0x0021 /* NetBIOS Node Status */
#define NAME_RR_CLASS_IN 0x0001 /* NetBIOS Node Status */
#define NAME_NB_FLAGS_ONT_MASK (3<<13)
#define NAME_NB_FLAGS_ONT_B (0<<13) /* B-node (broadcast) */
#define NAME_NB_FLAGS_ONT_P (1<<13) /* P-node (point-to-point) */
#define NAME_NB_FLAGS_ONT_M (2<<13) /* M-node (multicast) */
#define NAME_NB_FLAGS_ONT_resv (3<<13)
#define NAME_NB_FLAGS_G (1<<15) /* Group Name */
#define UNICAST 0
#define BROADCAST 1
#define POINTCAST 2
#define NAME_ATTR_UNIQUE 0x0000
#define NAME_ATTR_GROUP 0x8000
#define NAME_ATTR_OWNER_NODE_TYPE 0x6000
#define NAME_ATTR_OWNER_TYPE_BNODE 0x0000
#define NAME_ATTR_OWNER_TYPE_PNODE 0x2000
#define NAME_ATTR_OWNER_TYPE_MNODE 0x4000
#define NAME_ATTR_OWNER_TYPE_HNODE 0x6000
#define NAME_ATTR_DEREGISTER 0x1000
#define NAME_ATTR_CONFLICT 0x0800
#define NAME_ATTR_ACTIVE_NAME 0x0400
#define NAME_ATTR_PERMANENT 0x0200
#define NAME_ATTR_RESERVED 0x01FF
#define NAME_ATTR_LOCAL 0x0001
#define NODE_TYPE(x) ((x) & NAME_ATTR_OWNER_NODE_TYPE))
#define IS_BNODE(x) (NODE_TYPE(x) == NAME_ATTR_OWNER_TYPE_BNODE)
#define IS_PNODE(x) (NODE_TYPE(x) == NAME_ATTR_OWNER_TYPE_PNODE)
#define IS_MNODE(x) (NODE_TYPE(x) == NAME_ATTR_OWNER_TYPE_MNODE)
#define IS_HNODE(x) (NODE_TYPE(x) == NAME_ATTR_OWNER_TYPE_HNODE)
#define IS_UNIQUE(x) (((x) & NAME_ATTR_GROUP) == 0)
#define IS_GROUP(x) (((x) & NAME_ATTR_GROUP) != 0)
#define IS_PERMANENT(x) (((x) & NAME_ATTR_PERMANENT) != 0)
#define IS_CONFLICTING(x) (((x) & NAME_ATTR_CONFLICT) != 0)
#define IS_ACTIVE(x) (((x) & NAME_ATTR_ACTIVE) != 0)
#define IS_DEGREGISTERED(x) (((x) & NAME_ATTR_ACTIVE) != 0)
#define IS_LOCAL(x) (((x) & NAME_ATTR_LOCAL) != 0)
#define IS_PUBLIC(x) (((x) & NAME_ATTR_LOCAL) == 0)
#define PUBLIC_BITS(x) ((x) & ~NAME_ATTR_RESERVED)
#define SAME_SCOPE(scope, e) (strcmp((scope), ((e)->scope)) == 0)
/*
* STATISTICS Field of the NODE STATUS RESPONSE:
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | UNIT_ID (Unique unit ID) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | UNIT_ID,continued | JUMPERS | TEST_RESULT |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | VERSION_NUMBER | PERIOD_OF_STATISTICS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NUMBER_OF_CRCs | NUMBER_ALIGNMENT_ERRORS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NUMBER_OF_COLLISIONS | NUMBER_SEND_ABORTS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NUMBER_GOOD_SENDS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NUMBER_GOOD_RECEIVES |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NUMBER_RETRANSMITS | NUMBER_NO_RESOURCE_CONDITIONS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | NUMBER_FREE_COMMAND_BLOCKS | TOTAL_NUMBER_COMMAND_BLOCKS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |MAX_TOTAL_NUMBER_COMMAND_BLOCKS| NUMBER_PENDING_SESSIONS |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MAX_NUMBER_PENDING_SESSIONS | MAX_TOTAL_SESSIONS_POSSIBLE |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SESSION_DATA_PACKET_SIZE |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
typedef struct {
unsigned char unit_id[6];
unsigned char jumpers;
unsigned char test_result;
unsigned short version_number;
unsigned short statistical_period;
unsigned short crc_errors;
unsigned short alignment_errors;
unsigned short collisions;
unsigned short send_aborts;
unsigned int good_sends;
unsigned int good_receives;
unsigned short retransmits;
unsigned short no_resource_conditions;
unsigned short free_command_blocks;
unsigned short total_command_blocks;
unsigned short max_total_command_blocks;
unsigned short pending_sessions;
unsigned short max_pending_sessions;
unsigned short total_possible_sessions;
unsigned short session_data_packet_size;
} node_status_response;
/*
* 4.4.1. NetBIOS DATAGRAM HEADER
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MSG_TYPE | FLAGS | DGM_ID |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_IP |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_PORT | DGM_LENGTH |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | PACKET_OFFSET |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
typedef struct {
unsigned char msg_type;
unsigned char flags;
unsigned short dgm_id;
uint32_t source_ip;
unsigned short source_port;
unsigned short dgm_length;
unsigned short packet_offset;
} datagram_header;
/*
* MSG_TYPE values (in hexidecimal):
*
* 10 - DIRECT_UNIQUE DATAGRAM
* 11 - DIRECT_GROUP DATAGRAM
* 12 - BROADCAST DATAGRAM
* 13 - DATAGRAM ERROR
* 14 - DATAGRAM QUERY REQUEST
* 15 - DATAGRAM POSITIVE QUERY RESPONSE
* 16 - DATAGRAM NEGATIVE QUERY RESPONSE
*/
#define DATAGRAM_TYPE_DIRECT_UNIQUE 0x10
#define DATAGRAM_TYPE_DIRECT_GROUP 0x11
#define DATAGRAM_TYPE_BROADCAST 0x12
#define DATAGRAM_TYPE_ERROR_DATAGRAM 0x13
#define DATAGRAM_TYPE_QUERY_REQUEST 0x14
#define DATAGRAM_TYPE_POSITIVE_RESPONSE 0x15
#define DATAGRAM_TYPE_NEGATIVE_RESPONSE 0x16
/*
* Bit definitions of the FLAGS field:
*
* 0 1 2 3 4 5 6 7
* +---+---+---+---+---+---+---+---+
* | 0 | 0 | 0 | 0 | SNT | F | M |
* +---+---+---+---+---+---+---+---+
*
* Symbol Bit(s) Description
*
* M 7 MORE flag, If set then more NetBIOS datagram
* fragments follow.
*
* F 6 FIRST packet flag, If set then this is first
* (and possibly only) fragment of NetBIOS
* datagram
*
* SNT 4,5 Source End-Node type:
* 00 = B node
* 01 = P node
* 10 = M node
* 11 = H node
* RESERVED 0-3 Reserved, must be zero (0)
*/
#define DATAGRAM_FLAGS_MORE 0x01
#define DATAGRAM_FLAGS_FIRST 0x02
#define DATAGRAM_FLAGS_SRC_TYPE 0x0c
#define DATAGRAM_FLAGS_B_NODE 0x00
#define DATAGRAM_FLAGS_P_NODE 0x04
#define DATAGRAM_FLAGS_M_NODE 0x08
#define DATAGRAM_FLAGS_H_NODE 0x0C
#define DATAGRAM_FLAGS_NBDD 0x0c
#define DATAGRAM_FLAGS_RESERVED 0xf0
/*
* 4.4.2. DIRECT_UNIQUE, DIRECT_GROUP, & BROADCAST DATAGRAM
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MSG_TYPE | FLAGS | DGM_ID |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_IP |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_PORT | DGM_LENGTH |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | PACKET_OFFSET | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
* | |
* / SOURCE_NAME /
* / /
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | |
* / DESTINATION_NAME /
* / /
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | |
* / USER_DATA /
* / /
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
typedef struct {
datagram_header header;
unsigned char *source_name;
unsigned char *destination_name;
unsigned char *user_data;
} datagram_packet;
/*
* 4.4.3. DATAGRAM ERROR PACKET
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MSG_TYPE | FLAGS | DGM_ID |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_IP |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_PORT | ERROR_CODE |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* ERROR_CODE values (in hexidecimal):
*
* 82 - DESTINATION NAME NOT PRESENT
* 83 - INVALID SOURCE NAME FORMAT
* 84 - INVALID DESTINATION NAME FORMAT
*/
typedef struct {
unsigned char msg_type;
unsigned char flags;
unsigned short dgm_id;
uint32_t source_ip;
unsigned short source_port;
unsigned char error;
} datagram_error_packet;
/*
* 4.4.4. DATAGRAM QUERY REQUEST
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MSG_TYPE | FLAGS | DGM_ID |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_IP |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_PORT | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
* | |
* / DESTINATION_NAME /
* / /
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* 4.4.5. DATAGRAM POSITIVE AND NEGATIVE QUERY RESPONSE
*
* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MSG_TYPE | FLAGS | DGM_ID |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_IP |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SOURCE_PORT | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
* | |
* / DESTINATION_NAME /
* / /
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
typedef struct datagram_query_packet {
unsigned char msg_type;
unsigned char flags;
unsigned short dgm_id;
uint32_t source_ip;
unsigned short source_port;
unsigned char destination_name[MAX_NAME_LENGTH];
} datagram_query_packet;
typedef struct datagram {
struct datagram *forw;
struct datagram *back;
struct addr_entry inaddr;
int discard_timer;
unsigned char packet_type;
unsigned char flags;
unsigned short datagram_id;
struct name_entry src;
struct name_entry dest;
unsigned short offset;
unsigned short data_length;
unsigned char *data;
unsigned int rawbytes;
unsigned char rawbuf[MAX_DATAGRAM_LENGTH];
} datagram;
typedef struct datagram_queue {
struct datagram *forw;
struct datagram *back;
} datagram_queue;
typedef struct name_queue {
struct name_entry head;
mutex_t mtx;
} name_queue_t;
typedef struct nbcache_iter {
HT_ITERATOR nbc_hti;
struct name_entry *nbc_entry;
} nbcache_iter_t;
#define NETBIOS_EMPTY_NAME (unsigned char *)""
#define NETBIOS_NAME_IS_STAR(name) \
(bcmp(name, "*\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", NETBIOS_NAME_SZ) == 0)
/*
* NetBIOS service state machine interface
*/
void smb_netbios_event(netbios_event_t);
void smb_netbios_wait(netbios_event_t);
void smb_netbios_sleep(time_t);
boolean_t smb_netbios_running(void);
boolean_t smb_netbios_error(void);
/*
* Name Cache Functions
*/
int smb_netbios_cache_init(void);
void smb_netbios_cache_fini(void);
void smb_netbios_cache_dump(FILE *fp);
int smb_netbios_cache_count(void);
void smb_netbios_cache_clean(void);
void smb_netbios_cache_reset_ttl(void);
void smb_netbios_cache_delete_locals(name_queue_t *);
void smb_netbios_cache_refresh(name_queue_t *);
int smb_netbios_cache_insert(struct name_entry *name);
int smb_netbios_cache_insert_list(struct name_entry *name);
void smb_netbios_cache_delete(struct name_entry *name);
int smb_netbios_cache_delete_addr(struct name_entry *name);
struct name_entry *smb_netbios_cache_lookup(struct name_entry *name);
struct name_entry *smb_netbios_cache_lookup_addr(struct name_entry *name);
void smb_netbios_cache_update_entry(struct name_entry *, struct name_entry *);
void smb_netbios_cache_unlock_entry(struct name_entry *);
unsigned char *smb_netbios_cache_status(unsigned char *, int, unsigned char *);
int smb_netbios_cache_getfirst(nbcache_iter_t *);
int smb_netbios_cache_getnext(nbcache_iter_t *);
void smb_netbios_name_dump(FILE *fp, struct name_entry *entry);
void smb_netbios_name_logf(struct name_entry *entry);
void smb_netbios_name_freeaddrs(struct name_entry *entry);
struct name_entry *smb_netbios_name_dup(struct name_entry *, int);
/* Name service functions */
void *smb_netbios_name_service(void *);
void smb_init_name_struct(unsigned char *, char, unsigned char *, uint32_t,
unsigned short, uint32_t, uint32_t, struct name_entry *);
struct name_entry *smb_name_find_name(struct name_entry *name);
int smb_name_add_name(struct name_entry *name);
int smb_name_delete_name(struct name_entry *name);
void smb_name_unlock_name(struct name_entry *name);
void smb_netbios_name_config(void);
void smb_netbios_name_unconfig(void);
void smb_netbios_name_tick(void);
int smb_first_level_name_encode(struct name_entry *, unsigned char *, int);
int smb_first_level_name_decode(unsigned char *, struct name_entry *);
void smb_encode_netbios_name(unsigned char *, char, unsigned char *,
struct name_entry *);
/* Datagram service functions */
void *smb_netbios_datagram_service(void *);
int smb_netbios_datagram_send(struct name_entry *,
struct name_entry *, unsigned char *, int);
void smb_netbios_datagram_tick(void);
/* browser functions */
void *smb_browser_dispatch(void *arg);
void *smb_browser_service(void *);
int smb_browser_load_transact_header(unsigned char *, int, int, int, char *);
/* Netlogon function */
void smb_netlogon_receive(struct datagram *, char *, unsigned char *, int);
void smb_netlogon_request(struct name_entry *, char *);
#endif /* _SMB_NETBIOS_H_ */
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