diff options
Diffstat (limited to 'source3/nmbd')
| -rw-r--r-- | source3/nmbd/nmbd.h | 382 | ||||
| -rw-r--r-- | source3/nmbd/nmbd_packets.c | 1 |
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)) { |