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-rw-r--r--source3/nmbd/nmbd.h382
-rw-r--r--source3/nmbd/nmbd_packets.c1
2 files changed, 383 insertions, 0 deletions
diff --git a/source3/nmbd/nmbd.h b/source3/nmbd/nmbd.h
index f207eb9..0a8e345 100644
--- a/source3/nmbd/nmbd.h
+++ b/source3/nmbd/nmbd.h
@@ -26,6 +26,388 @@
#endif
#include "libsmb/nmblib.h"
+
+#define INFO_VERSION "INFO/version"
+#define INFO_COUNT "INFO/num_entries"
+#define INFO_ID_HIGH "INFO/id_high"
+#define INFO_ID_LOW "INFO/id_low"
+#define ENTRY_PREFIX "ENTRY/"
+
+#define PERMANENT_TTL 0
+
+/* NTAS uses 2, NT uses 1, WfWg uses 0 */
+#define MAINTAIN_LIST 2
+#define ELECTION_VERSION 1
+
+#define REFRESH_TIME (15*60)
+#define NAME_POLL_REFRESH_TIME (5*60)
+#define NAME_POLL_INTERVAL 15
+
+/* Workgroup state identifiers. */
+#define AM_POTENTIAL_MASTER_BROWSER(work) ((work)->mst_state == MST_POTENTIAL)
+#define AM_LOCAL_MASTER_BROWSER(work) ((work)->mst_state == MST_BROWSER)
+#define AM_DOMAIN_MASTER_BROWSER(work) ((work)->dom_state == DOMAIN_MST)
+#define AM_DOMAIN_MEMBER(work) ((work)->log_state == LOGON_SRV)
+
+/* Microsoft browser NetBIOS name. */
+#define MSBROWSE "\001\002__MSBROWSE__\002"
+
+/* Mail slots. */
+#define BROWSE_MAILSLOT "\\MAILSLOT\\BROWSE"
+#define NET_LOGON_MAILSLOT "\\MAILSLOT\\NET\\NETLOGON"
+#define NT_LOGON_MAILSLOT "\\MAILSLOT\\NET\\NTLOGON"
+#define LANMAN_MAILSLOT "\\MAILSLOT\\LANMAN"
+
+/* Samba definitions for find_name_on_subnet(). */
+#define FIND_ANY_NAME 0
+#define FIND_SELF_NAME 1
+
+/*
+ * The different name types that can be in namelists.
+ *
+ * SELF_NAME should only be on the broadcast and unicast subnets.
+ * LMHOSTS_NAME should only be in the remote_broadcast_subnet.
+ * REGISTER_NAME, DNS_NAME, DNSFAIL_NAME should only be in the wins_server_subnet.
+ * WINS_PROXY_NAME should only be on the broadcast subnets.
+ * PERMANENT_NAME can be on all subnets except remote_broadcast_subnet.
+ *
+ */
+
+enum name_source {LMHOSTS_NAME, REGISTER_NAME, SELF_NAME, DNS_NAME,
+ DNSFAIL_NAME, PERMANENT_NAME, WINS_PROXY_NAME};
+
+enum master_state {
+ MST_NONE,
+ MST_POTENTIAL,
+ MST_BACKUP,
+ MST_MSB,
+ MST_BROWSER,
+ MST_UNBECOMING_MASTER
+};
+
+enum domain_state {
+ DOMAIN_NONE,
+ DOMAIN_WAIT,
+ DOMAIN_MST
+};
+
+enum logon_state {
+ LOGON_NONE,
+ LOGON_WAIT,
+ LOGON_SRV
+};
+
+struct subnet_record;
+
+struct nmb_data {
+ uint16_t nb_flags; /* Netbios flags. */
+ int num_ips; /* Number of ip entries. */
+ struct in_addr *ip; /* The ip list for this name. */
+
+ enum name_source source; /* Where the name came from. */
+
+ time_t death_time; /* The time the record must be removed (do not remove if 0). */
+ time_t refresh_time; /* The time the record should be refreshed. */
+
+ uint64_t id; /* unique id */
+ struct in_addr wins_ip; /* the address of the wins server this record comes from */
+
+ int wins_flags; /* similar to the netbios flags but different ! */
+};
+
+/* This structure represents an entry in a local netbios name list. */
+struct name_record {
+ struct name_record *prev, *next;
+ struct subnet_record *subnet;
+ struct nmb_name name; /* The netbios name. */
+ struct nmb_data data; /* The netbios data. */
+};
+
+/* Browser cache for synchronising browse lists. */
+struct browse_cache_record {
+ struct browse_cache_record *prev, *next;
+ unstring lmb_name;
+ unstring work_group;
+ struct in_addr ip;
+ time_t sync_time;
+ time_t death_time; /* The time the record must be removed. */
+};
+
+/* used for server information: client, nameserv and ipc */
+struct server_info_struct {
+ fstring name;
+ uint32_t type;
+ fstring comment;
+ fstring domain; /* used ONLY in ipc.c NOT namework.c */
+ bool server_added; /* used ONLY in ipc.c NOT namework.c */
+};
+
+/* 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;
+
+ struct subnet_record *subnet;
+
+ 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 subnet_record *subnet;
+
+ struct server_record *serverlist;
+
+ /* Stage of development from non-local-master up to local-master browser. */
+ enum master_state mst_state;
+
+ /* Stage of development from non-domain-master to domain-master browser. */
+ enum domain_state dom_state;
+
+ /* Stage of development from non-logon-server to logon server. */
+ enum logon_state log_state;
+
+ /* Work group info. */
+ unstring work_group;
+ int token; /* Used when communicating with backup browsers. */
+ unstring local_master_browser_name; /* Current local master browser. */
+
+ /* Announce info. */
+ time_t lastannounce_time;
+ int announce_interval;
+ bool needannounce;
+
+ /* Timeout time for this workgroup. 0 means permanent. */
+ time_t death_time;
+
+ /* Election info */
+ bool RunningElection;
+ bool needelection;
+ int ElectionCount;
+ uint32_t ElectionCriterion;
+
+ /* Domain master browser info. Used for efficient syncs. */
+ struct nmb_name dmb_name;
+ struct in_addr dmb_addr;
+};
+
+/* typedefs needed to define copy & free functions for userdata. */
+struct userdata_struct;
+
+typedef struct userdata_struct * (*userdata_copy_fn)(struct userdata_struct *);
+typedef void (*userdata_free_fn)(struct userdata_struct *);
+
+/* Structure to define any userdata passed around. */
+
+struct userdata_struct {
+ userdata_copy_fn copy_fn;
+ userdata_free_fn free_fn;
+ unsigned int userdata_len;
+ char data[16]; /* 16 is to ensure alignment/padding on all systems */
+};
+
+struct response_record;
+struct packet_struct;
+struct res_rec;
+
+/* typedef to define the function called when this response packet comes in. */
+typedef void (*response_function)(struct subnet_record *, struct response_record *,
+ struct packet_struct *);
+
+/* typedef to define the function called when this response record times out. */
+typedef void (*timeout_response_function)(struct subnet_record *,
+ struct response_record *);
+
+/* typedef to define the function called when the request that caused this
+ response record to be created is successful. */
+typedef void (*success_function)(struct subnet_record *, struct userdata_struct *, ...);
+
+/* typedef to define the function called when the request that caused this
+ response record to be created is unsuccessful. */
+typedef void (*fail_function)(struct subnet_record *, struct response_record *, ...);
+
+/* List of typedefs for success and fail functions of the different query
+ types. Used to catch any compile time prototype errors. */
+
+typedef void (*register_name_success_function)( struct subnet_record *,
+ struct userdata_struct *,
+ struct nmb_name *,
+ uint16_t,
+ int,
+ struct in_addr);
+typedef void (*register_name_fail_function)( struct subnet_record *,
+ struct response_record *,
+ struct nmb_name *);
+
+typedef void (*release_name_success_function)( struct subnet_record *,
+ struct userdata_struct *,
+ struct nmb_name *,
+ struct in_addr);
+typedef void (*release_name_fail_function)( struct subnet_record *,
+ struct response_record *,
+ struct nmb_name *);
+
+typedef void (*refresh_name_success_function)( struct subnet_record *,
+ struct userdata_struct *,
+ struct nmb_name *,
+ uint16_t,
+ int,
+ struct in_addr);
+typedef void (*refresh_name_fail_function)( struct subnet_record *,
+ struct response_record *,
+ struct nmb_name *);
+
+typedef void (*query_name_success_function)( struct subnet_record *,
+ struct userdata_struct *,
+ struct nmb_name *,
+ struct in_addr,
+ struct res_rec *answers);
+
+typedef void (*query_name_fail_function)( struct subnet_record *,
+ struct response_record *,
+ struct nmb_name *,
+ int);
+
+typedef void (*node_status_success_function)( struct subnet_record *,
+ struct userdata_struct *,
+ struct res_rec *,
+ struct in_addr);
+typedef void (*node_status_fail_function)( struct subnet_record *,
+ struct response_record *);
+
+/* Initiated name queries are recorded in this list to track any responses. */
+
+struct response_record {
+ struct response_record *next;
+ struct response_record *prev;
+
+ uint16_t response_id;
+
+ /* Callbacks for packets received or not. */
+ response_function resp_fn;
+ timeout_response_function timeout_fn;
+
+ /* Callbacks for the request succeeding or not. */
+ success_function success_fn;
+ fail_function fail_fn;
+
+ struct packet_struct *packet;
+
+ struct userdata_struct *userdata;
+
+ int num_msgs;
+
+ time_t repeat_time;
+ time_t repeat_interval;
+ int repeat_count;
+
+ /* Recursion protection. */
+ bool in_expiration_processing;
+};
+
+/* A subnet structure. It contains a list of workgroups and netbios names. */
+
+/*
+ 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.
+*/
+
+enum subnet_type {
+ NORMAL_SUBNET = 0, /* Subnet listed in interfaces list. */
+ UNICAST_SUBNET = 1, /* Subnet for unicast packets. */
+ REMOTE_BROADCAST_SUBNET = 2, /* Subnet for remote broadcasts. */
+ WINS_SERVER_SUBNET = 3 /* Only created if we are a WINS server. */
+};
+
+struct subnet_record {
+ struct subnet_record *next;
+ struct subnet_record *prev;
+
+ char *subnet_name; /* For Debug identification. */
+ enum subnet_type type; /* To catagorize the subnet. */
+
+ struct work_record *workgrouplist; /* List of workgroups. */
+ struct name_record *namelist; /* List of netbios names. */
+ struct response_record *responselist; /* List of responses expected. */
+
+ bool namelist_changed;
+ bool work_changed;
+
+ struct in_addr bcast_ip;
+ struct in_addr mask_ip;
+ struct in_addr myip;
+ int nmb_sock; /* socket to listen for unicast 137. */
+ int nmb_bcast; /* socket to listen for broadcast 137. */
+ int dgram_sock; /* socket to listen for unicast 138. */
+ int dgram_bcast; /* socket to listen for broadcast 138. */
+};
+
+/* Broadcast packet announcement intervals, in minutes. */
+
+/* Attempt to add domain logon and domain master names. */
+#define CHECK_TIME_ADD_DOM_NAMES 5
+
+/* 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
+
+/* Time between syncs from domain master browser to local master browsers. */
+#define CHECK_TIME_DMB_TO_LMB_SYNC 15
+
+/* Do all remote announcements this often. */
+#define REMOTE_ANNOUNCE_INTERVAL 180
+
+/* what is the maximum period between name refreshes. Note that this only
+ affects non-permanent self names (in seconds) */
+#define MAX_REFRESH_TIME (60*20)
+
+/* The Extinction interval: 4 days, time a node will stay in released state */
+#define EXTINCTION_INTERVAL (4*24*60*60)
+
+/* The Extinction time-out: 1 day, time a node will stay in deleted state */
+#define EXTINCTION_TIMEOUT (24*60*60)
+
+/* Macro's to enumerate subnets either with or without
+ the UNICAST subnet. */
+
+extern struct subnet_record *subnetlist;
+extern struct subnet_record *unicast_subnet;
+extern struct subnet_record *wins_server_subnet;
+extern struct subnet_record *remote_broadcast_subnet;
+
+#define FIRST_SUBNET subnetlist
+#define NEXT_SUBNET_EXCLUDING_UNICAST(x) ((x)->next)
+#define NEXT_SUBNET_INCLUDING_UNICAST(x) (get_next_subnet_maybe_unicast((x)))
+
+/* wins replication record used between nmbd and wrepld */
+typedef struct _WINS_RECORD {
+ char name[17];
+ char type;
+ int nb_flags;
+ int wins_flags;
+ uint64_t id;
+ int num_ips;
+ struct in_addr ip[25];
+ struct in_addr wins_ip;
+} WINS_RECORD;
+
#include "nmbd/nmbd_proto.h"
#define NMBD_WAIT_INTERFACES_TIME_USEC (250 * 1000)
diff --git a/source3/nmbd/nmbd_packets.c b/source3/nmbd/nmbd_packets.c
index a1d8dee..1da3657 100644
--- a/source3/nmbd/nmbd_packets.c
+++ b/source3/nmbd/nmbd_packets.c
@@ -43,6 +43,7 @@ bool nmbd_init_packet_server(void)
status = nb_packet_server_create(
NULL, nmbd_event_context(),
+ global_nmbd_socket_dir(),
lp_parm_int(-1, "nmbd", "unexpected_clients", 200),
&packet_server);
if (!NT_STATUS_IS_OK(status)) {