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-rw-r--r--source/include/nameserv.h278
1 files changed, 230 insertions, 48 deletions
diff --git a/source/include/nameserv.h b/source/include/nameserv.h
index 168dd4ba866..7a97097e78e 100644
--- a/source/include/nameserv.h
+++ b/source/include/nameserv.h
@@ -20,16 +20,97 @@
*/
-#define MAX_DGRAM_SIZE 576
+#define GET_TTL(ttl) ((ttl)?MIN(ttl,lp_max_ttl()):lp_max_ttl())
+
+/* NTAS uses 2, NT uses 1, WfWg uses 0 */
+#define MAINTAIN_LIST 2
+#define ELECTION_VERSION 1
+
+#define MAX_DGRAM_SIZE (576) /* tcp/ip datagram limit is 576 bytes */
#define MIN_DGRAM_SIZE 12
-#define NMB_PORT 137
-#define DGRAM_PORT 138
-#define SMB_PORT 139
+#define NMB_QUERY 0x20
+#define NMB_STATUS 0x21
+
+#define NMB_REG 0x05 /* see rfc1002.txt 4.2.2,3,5,6,7,8 */
+#define NMB_REG_REFRESH 0x09 /* see rfc1002.txt 4.2.4 */
+#define NMB_REL 0x06 /* see rfc1002.txt 4.2.9,10,11 */
+#define NMB_WAIT_ACK 0x07 /* see rfc1002.txt 4.2.16 */
+/* XXXX what about all the other types?? 0x1, 0x2, 0x3, 0x4, 0x8? */
+
+#define FIND_SELF 0x01
+#define FIND_WINS 0x02
+#define FIND_LOCAL 0x04
+
+/* NetBIOS flags */
+#define NB_GROUP 0x80
+#define NB_PERM 0x02
+#define NB_ACTIVE 0x04
+#define NB_CONFL 0x08
+#define NB_DEREG 0x10
+#define NB_BFLAG 0x00
+#define NB_PFLAG 0x20
+#define NB_MFLAG 0x40
+#define NB__FLAG 0x60
+#define NB_FLGMSK 0x60
+
+#define REFRESH_TIME (15*60)
+#define NAME_POLL_REFRESH_TIME (5*60)
+#define NAME_POLL_INTERVAL 15
+
+/* NetBIOS flag identifier */
+#define NAME_PERMANENT(p) ((p) & NB_PERM)
+#define NAME_ACTIVE(p) ((p) & NB_ACTIVE)
+#define NAME_CONFLICT(p) ((p) & NB_CONFL)
+#define NAME_DEREG(p) ((p) & NB_DEREG)
+#define NAME_GROUP(p) ((p) & NB_GROUP)
+
+#define NAME_BFLAG(p) (((p) & NB_FLGMSK) == NB_BFLAG)
+#define NAME_PFLAG(p) (((p) & NB_FLGMSK) == NB_PFLAG)
+#define NAME_MFLAG(p) (((p) & NB_FLGMSK) == NB_MFLAG)
+#define NAME__FLAG(p) (((p) & NB_FLGMSK) == NB__FLAG)
+
+/* server type identifiers */
+#define AM_MASTER(work) (work->ServerType & SV_TYPE_MASTER_BROWSER)
+#define AM_BACKUP(work) (work->ServerType & SV_TYPE_BACKUP_BROWSER)
+#define AM_DOMCTL(work) (work->ServerType & SV_TYPE_DOMAIN_CTRL)
-enum name_source {LMHOSTS, REGISTER, SELF, DNS, DNSFAIL};
+/* microsoft browser NetBIOS name */
+#define MSBROWSE "\001\002__MSBROWSE__\002"
+
+/* mail slots */
+#define BROWSE_MAILSLOT "\\MAILSLOT\\BROWSE"
+#define NET_LOGON_MAILSLOT "\\MAILSLOT\\NET\\NETLOGON"
+
+enum name_source {STATUS_QUERY, LMHOSTS, REGISTER, SELF, DNS, DNSFAIL};
enum node_type {B_NODE=0, P_NODE=1, M_NODE=2, NBDD_NODE=3};
enum packet_type {NMB_PACKET, DGRAM_PACKET};
+enum master_state
+{
+ MST_NONE,
+ MST_WON,
+ MST_MSB,
+ MST_BROWSER,
+ MST_DOMAIN_NONE,
+ MST_DOMAIN_MEM,
+ MST_DOMAIN_TST,
+ MST_DOMAIN
+};
+
+enum state_type
+{
+ NAME_STATUS_PDC_SRV_CHK,
+ NAME_STATUS_SRV_CHK,
+ NAME_REGISTER_CHALLENGE,
+ NAME_REGISTER,
+ NAME_RELEASE,
+ NAME_QUERY_CONFIRM,
+ NAME_QUERY_SYNC,
+ NAME_QUERY_PDC_SRV_CHK,
+ NAME_QUERY_SRV_CHK,
+ NAME_QUERY_FIND_MST,
+ NAME_QUERY_MST_CHK
+};
/* a netbios name structure */
struct nmb_name {
@@ -43,35 +124,135 @@ struct name_record
{
struct name_record *next;
struct name_record *prev;
- struct nmb_name name;
- time_t death_time;
- struct in_addr ip;
- BOOL unique;
- enum name_source source;
+
+ struct nmb_name name; /* the netbios name */
+ struct in_addr ip; /* ip address of host that owns this name */
+ int nb_flags; /* netbios flags */
+
+ enum name_source source; /* where the name came from */
+
+ time_t death_time; /* time record must be removed (do not remove if 0) */
+ time_t refresh_time; /* time record should be refreshed */
};
-/* this is used by the list of domains */
-struct domain_record
+/* browse and backup server cache for synchronising browse list */
+struct browse_cache_record
{
- struct domain_record *next;
- struct domain_record *prev;
- fstring name;
- time_t lastannounce_time;
- int announce_interval;
- struct in_addr bcast_ip;
+ struct browse_cache_record *next;
+ struct browse_cache_record *prev;
+
+ pstring name;
+ int type;
+ pstring group;
+ struct in_addr ip;
+ time_t sync_time;
+ BOOL synced;
};
-/* this is used to hold the list of servers in my domain */
+/* this is used to hold the list of servers in my domain, and is */
+/* contained within lists of domains */
struct server_record
{
struct server_record *next;
struct server_record *prev;
- fstring name;
- fstring comment;
- uint32 servertype;
+
+ struct server_info_struct serv;
time_t death_time;
};
+/* a workgroup structure. it contains a list of servers */
+struct work_record
+{
+ struct work_record *next;
+ struct work_record *prev;
+
+ struct server_record *serverlist;
+
+ /* stage of development from non-master to master browser / domain master */
+ enum master_state state;
+
+ /* work group info */
+ fstring work_group;
+ int token; /* used when communicating with backup browsers */
+ int ServerType;
+
+ /* announce info */
+ time_t lastannounce_time;
+ int announce_interval;
+ BOOL needannounce;
+
+
+ /* election info */
+ BOOL RunningElection;
+ BOOL needelection;
+ int ElectionCount;
+ uint32 ElectionCriterion;
+};
+
+/* initiated name queries recorded in this list to track any responses... */
+struct response_record
+{
+ struct response_record *next;
+ struct response_record *prev;
+
+ uint16 response_id;
+ enum state_type state;
+
+ int fd;
+ int quest_type;
+ struct nmb_name name;
+ int nb_flags;
+ time_t ttl;
+
+ BOOL bcast;
+ BOOL recurse;
+ struct in_addr send_ip;
+ struct in_addr reply_to_ip;
+
+ int num_msgs;
+
+ time_t repeat_time;
+ time_t repeat_interval;
+ int repeat_count;
+};
+
+/* a subnet structure. it contains a list of workgroups and netbios names*/
+
+/* note that a subnet of 255.255.255.255 contains all the WINS netbios names.
+ all communication from such nodes are on a non-broadcast basis: they
+ are point-to-point (P nodes) or mixed point-to-point and broadcast
+ (M nodes). M nodes use point-to-point as a preference, and will use
+ broadcasting for certain activities, or will resort to broadcasting as a
+ last resort, if the WINS server fails (users of wfwg will notice that their
+ machine often freezes for 30 seconds at a time intermittently, if the WINS
+ server is down).
+
+ B nodes will have their own, totally separate subnet record, with their
+ own netbios name set. these do NOT interact with other subnet records'
+ netbios names, INCLUDING the WINS one (with an ip "address", so called,
+ of 255.255.255.255)
+
+ there is a separate response list for each subnet record. in the case of
+ the 255.255.255.255 subnet record (WINS), the WINS server will be able to
+ use this to poll (infrequently!) each of its entries, to ensure that the
+ names are still in use.
+ XXXX this polling is a planned feature for a really over-cautious WINS server
+*/
+
+struct subnet_record
+{
+ struct subnet_record *next;
+ struct subnet_record *prev;
+
+ struct work_record *workgrouplist; /* list of workgroups */
+ struct name_record *namelist; /* list of netbios names */
+ struct response_record *responselist; /* list of responses expected */
+
+ struct in_addr bcast_ip;
+ struct in_addr mask_ip;
+ struct in_addr myip;
+};
+
/* a resource record */
struct res_rec {
struct nmb_name rr_name;
@@ -154,31 +335,32 @@ struct packet_struct
};
-/* this defines a list of network interfaces */
-struct net_interface {
- struct net_interface *next;
- struct in_addr ip;
- struct in_addr bcast;
- struct in_addr netmask;
-};
+/* ids for netbios packet types */
+#define ANN_HostAnnouncement 1
+#define ANN_AnnouncementRequest 2
+#define ANN_Election 8
+#define ANN_GetBackupListReq 9
+#define ANN_GetBackupListResp 10
+#define ANN_BecomeBackup 11
+#define ANN_DomainAnnouncement 12
+#define ANN_MasterAnnouncement 13
+#define ANN_ResetBrowserState 14
+#define ANN_LocalMasterAnnouncement 15
+
+
+/* broadcast packet announcement intervals, in minutes */
+
+/* search for master browsers of workgroups samba knows about,
+ except default */
+#define CHECK_TIME_MST_BROWSE 5
+
+/* request backup browser announcements from other servers */
+#define CHECK_TIME_ANNOUNCE_BACKUP 15
+
+/* request host announcements from other servers: min and max of interval */
+#define CHECK_TIME_MIN_HOST_ANNCE 3
+#define CHECK_TIME_MAX_HOST_ANNCE 12
+/* announce as master to WINS server and any Primary Domain Controllers */
+#define CHECK_TIME_MST_ANNOUNCE 15
-/* prototypes */
-void free_nmb_packet(struct nmb_packet *nmb);
-void free_packet(struct packet_struct *packet);
-struct packet_struct *read_packet(int fd,enum packet_type packet_type);
-BOOL send_packet(struct packet_struct *p);
-struct packet_struct *receive_packet(int fd,enum packet_type type,int timeout);
-void make_nmb_name(struct nmb_name *n,char *name,int type,char *this_scope);
-BOOL name_query(int fd,char *name,int name_type,
- BOOL bcast,BOOL recurse,
- struct in_addr to_ip, struct in_addr *ip,void (*fn)());
-BOOL name_status(int fd,char *name,int name_type,BOOL recurse,
- struct in_addr to_ip,char *master,char *rname,
- void (*fn)());
-BOOL send_mailslot_reply(char *mailslot,int fd,char *buf,int len,
- char *srcname,char *dstname,
- int src_type,int dest_type,
- struct in_addr dest_ip,
- struct in_addr src_ip);
-char *namestr(struct nmb_name *n);
generated by cgit (git 2.34.1) at 2024-06-11 01:31:52 +0000