nmbd/nmbd_workgroupdb.c

ソースコードを見る。

関数
static void	add_workgroup (struct subnet_record *subrec, struct work_record *work)
static void	name_to_unstring (unstring unname, const char *name)
static struct work_record *	create_workgroup (const char *name, int ttl)
static struct work_record *	remove_workgroup_from_subnet (struct subnet_record *subrec, struct work_record *work)
work_record *	find_workgroup_on_subnet (struct subnet_record *subrec, const char *name)
work_record *	create_workgroup_on_subnet (struct subnet_record *subrec, const char *name, int ttl)
void	update_workgroup_ttl (struct work_record *work, int ttl)
static void	fail_register (struct subnet_record *subrec, struct response_record *rrec, struct nmb_name *nmbname)
void	initiate_myworkgroup_startup (struct subnet_record *subrec, struct work_record *work)
void	dump_workgroups (BOOL force_write)
void	expire_workgroups_and_servers (time_t t)
変数
uint16	samba_nb_type
int	workgroup_count = 0

---

関数

static void add_workgroup	(	struct subnet_record *	subrec,
		struct work_record *	work
	)			[static]

nmbd_workgroupdb.c の 34 行で定義されています。

参照先 work_record::subnet・subnet_record::work_changed・subnet_record::workgrouplist.

参照元 create_workgroup_on_subnet().

{
        work->subnet = subrec;
        DLIST_ADD(subrec->workgrouplist, work);
        subrec->work_changed = True;
}

static void name_to_unstring	(	unstring	unname,
		const char *	name
	)			[static]

nmbd_workgroupdb.c の 45 行で定義されています。

参照先 errno・pull_ascii_nstring()・push_ascii_nstring().

参照元 create_workgroup()・find_workgroup_on_subnet().

{
        nstring nname;

        errno = 0;
        push_ascii_nstring(nname, name);
        if (errno == E2BIG) {
                unstring tname;
                pull_ascii_nstring(tname, sizeof(tname), nname);
                unstrcpy(unname, tname);
                DEBUG(0,("name_to_nstring: workgroup name %s is too long. Truncating to %s\n",
                        name, tname));
        } else {
                unstrcpy(unname, name);
        }
}

static struct work_record* create_workgroup	(	const char *	name,
		int	ttl
	)			[static]

nmbd_workgroupdb.c の 66 行で定義されています。

参照先 DOMAIN_NONE・LOGON_NONE・MST_NONE・MST_POTENTIAL・name_to_unstring()・strequal()・t・workgroup_count・zero_ip().

参照元 create_workgroup_on_subnet().

{
        struct work_record *work;
        struct subnet_record *subrec;
        int t = -1;
  
        if((work = SMB_MALLOC_P(struct work_record)) == NULL) {
                DEBUG(0,("create_workgroup: malloc fail !\n"));
                return NULL;
        }
        memset((char *)work, '\0', sizeof(*work));

        name_to_unstring(work->work_group, name);

        work->serverlist = NULL;
  
        work->RunningElection = False;
        work->ElectionCount = 0;
        work->announce_interval = 0;
        work->needelection = False;
        work->needannounce = True;
        work->lastannounce_time = time(NULL);
        work->mst_state = lp_local_master() ? MST_POTENTIAL : MST_NONE;
        work->dom_state = DOMAIN_NONE;
        work->log_state = LOGON_NONE;
  
        work->death_time = (ttl != PERMANENT_TTL) ? time(NULL)+(ttl*3) : PERMANENT_TTL;

        /* Make sure all token representations of workgroups are unique. */
  
        for (subrec = FIRST_SUBNET; subrec && (t == -1); subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) {
                struct work_record *w;
                for (w = subrec->workgrouplist; w && t == -1; w = w->next) {
                        if (strequal(w->work_group, work->work_group))
                                t = w->token;
                }
        }
  
        if (t == -1)
                work->token = ++workgroup_count;
        else
                work->token = t;
  
        /* No known local master browser as yet. */
        *work->local_master_browser_name = '\0';

        /* No known domain master browser as yet. */
        *work->dmb_name.name = '\0';
        zero_ip(&work->dmb_addr);

        /* WfWg  uses 01040b01 */
        /* Win95 uses 01041501 */
        /* NTAS  uses ???????? */
        work->ElectionCriterion  = (MAINTAIN_LIST)|(BROWSER_ELECTION_VERSION<<8); 
        work->ElectionCriterion |= (lp_os_level() << 24);
        if (lp_domain_master())
                work->ElectionCriterion |= 0x80;
  
        return work;
}

static struct work_record* remove_workgroup_from_subnet	(	struct subnet_record *	subrec,
		struct work_record *	work
	)			[static]

nmbd_workgroupdb.c の 131 行で定義されています。

参照先 work_record::next・work_record::prev・remove_all_servers()・work_record::serverlist・subnet_record::work_changed・work_record::work_group・subnet_record::workgrouplist.

参照元 expire_workgroups_and_servers().

{
        struct work_record *ret_work = NULL;
  
        DEBUG(3,("remove_workgroup: Removing workgroup %s\n", work->work_group));
  
        ret_work = work->next;

        remove_all_servers(work);
  
        if (!work->serverlist) {
                if (work->prev)
                        work->prev->next = work->next;
                if (work->next)
                        work->next->prev = work->prev;
  
                if (subrec->workgrouplist == work)
                        subrec->workgrouplist = work->next; 
  
                ZERO_STRUCTP(work);
                SAFE_FREE(work);
        }
  
        subrec->work_changed = True;

        return ret_work;
}

struct work_record* find_workgroup_on_subnet	(	struct subnet_record *	subrec,
		const char *	name
	)

nmbd_workgroupdb.c の 164 行で定義されています。

参照先 name_to_unstring()・work_record::next・strequal()・subnet_record::subnet_name・work_record::work_group・subnet_record::workgrouplist.

参照元 add_logon_names()・announce_my_lm_server_names()・announce_my_server_names()・become_domain_master_browser_bcast()・become_domain_master_browser_wins()・become_domain_master_fail()・become_domain_master_stage1()・become_domain_master_stage2()・become_local_master_fail1()・become_local_master_fail2()・become_local_master_stage1()・become_local_master_stage2()・become_logon_server_fail()・become_logon_server_success()・browse_sync_remote()・check_for_master_browser_fail()・collect_all_workgroup_names_from_wins_server()・complete_one()・domain_master_node_status_success()・find_domain_master_name_query_success()・get_domain_master_name_node_status_success()・process_announce_request()・process_election()・process_get_backup_list_request()・process_host_announce()・process_lm_announce_request()・process_lm_host_announce()・process_local_master_announce()・process_master_browser_announce()・process_workgroup_announce()・reset_workgroup_state()・sync_all_dmbs()・sync_with_lmb()・write_browse_list()・write_this_workgroup_name().

{
        struct work_record *ret;
        unstring un_name;
 
        DEBUG(4, ("find_workgroup_on_subnet: workgroup search for %s on subnet %s: ",
                name, subrec->subnet_name));
  
        name_to_unstring(un_name, name);

        for (ret = subrec->workgrouplist; ret; ret = ret->next) {
                if (strequal(ret->work_group,un_name)) {
                        DEBUGADD(4, ("found.\n"));
                        return(ret);
                }
        }
        DEBUGADD(4, ("not found.\n"));
        return NULL;
}

struct work_record* create_workgroup_on_subnet	(	struct subnet_record *	subrec,
		const char *	name,
		int	ttl
	)

nmbd_workgroupdb.c の 189 行で定義されています。

参照先 add_workgroup()・create_workgroup()・subnet_record::subnet_name.

参照元 complete_one()・get_domain_master_name_node_status_success()・process_host_announce()・process_lm_host_announce()・process_local_master_announce()・process_workgroup_announce()・register_my_workgroup_one_subnet().

{
        struct work_record *work = NULL;

        DEBUG(4,("create_workgroup_on_subnet: creating group %s on subnet %s\n",
                name, subrec->subnet_name));
  
        if ((work = create_workgroup(name, ttl))) {
                add_workgroup(subrec, work);
                subrec->work_changed = True;
                return(work);
        }

        return NULL;
}

void update_workgroup_ttl	(	struct work_record *	work,
		int	ttl
	)

nmbd_workgroupdb.c の 210 行で定義されています。

参照先 work_record::death_time・work_record::subnet・subnet_record::work_changed.

参照元 complete_one()・process_workgroup_announce().

{
        if(work->death_time != PERMANENT_TTL)
                work->death_time = time(NULL)+(ttl*3);
        work->subnet->work_changed = True;
}

static void fail_register	(	struct subnet_record *	subrec,
		struct response_record *	rrec,
		struct nmb_name *	nmbname
	)			[static]

nmbd_workgroupdb.c の 222 行で定義されています。

参照先 nmb_namestr()・subnet_record::subnet_name.

参照元 initiate_myworkgroup_startup().

{  
        DEBUG(0,("fail_register: Failed to register name %s on subnet %s.\n",
                nmb_namestr(nmbname), subrec->subnet_name));
}  

void initiate_myworkgroup_startup	(	struct subnet_record *	subrec,
		struct work_record *	work
	)

nmbd_workgroupdb.c の 233 行で定義されています。

参照先 create_server_on_workgroup()・work_record::ElectionCriterion・fail_register()・global_myname・lp_workgroup()・my_netbios_names()・name・work_record::needelection・register_name()・remote_broadcast_subnet・samba_nb_type・strequal()・string_truncate()・subnet_record::subnet_name・unicast_subnet・wins_server_subnet・work_record::work_group.

参照元 register_my_workgroup_one_subnet().

{
        int i;

        if(!strequal(lp_workgroup(), work->work_group))
                return;

        /* If this is a broadcast subnet then start elections on it if we are so configured. */

        if ((subrec != unicast_subnet) && (subrec != remote_broadcast_subnet) &&
                        (subrec != wins_server_subnet) && lp_preferred_master() && lp_local_master()) {
                DEBUG(3, ("initiate_myworkgroup_startup: preferred master startup for \
workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name));
                work->needelection = True;
                work->ElectionCriterion |= (1<<3);
        }
  
        /* Register the WORKGROUP<0> and WORKGROUP<1e> names on the network. */

        register_name(subrec,lp_workgroup(),0x0,samba_nb_type|NB_GROUP, NULL, fail_register,NULL);
        register_name(subrec,lp_workgroup(),0x1e,samba_nb_type|NB_GROUP, NULL, fail_register,NULL);

        for( i = 0; my_netbios_names(i); i++) {
                const char *name = my_netbios_names(i);
                int stype = lp_default_server_announce() | (lp_local_master() ?  SV_TYPE_POTENTIAL_BROWSER : 0 );
   
                if(!strequal(global_myname(), name))
                        stype &= ~(SV_TYPE_MASTER_BROWSER|SV_TYPE_POTENTIAL_BROWSER|SV_TYPE_DOMAIN_MASTER|SV_TYPE_DOMAIN_MEMBER);
   
                create_server_on_workgroup(work,name,stype|SV_TYPE_LOCAL_LIST_ONLY, PERMANENT_TTL, 
                                string_truncate(lp_serverstring(), MAX_SERVER_STRING_LENGTH));
                DEBUG(3,("initiate_myworkgroup_startup: Added server name entry %s \
on subnet %s\n", name, subrec->subnet_name));
        }
} 

void dump_workgroups

(

BOOL

force_write

)

nmbd_workgroupdb.c の 273 行で定義されています。

参照先 server_info_struct::comment・dbgtext()・debuglevel・work_record::local_master_browser_name・subnet_record::mask_ip・server_info_struct::name・server_record::next・work_record::next・server_record::serv・work_record::serverlist・subnet_record::subnet_name・work_record::token・server_info_struct::type・work_record::work_group・subnet_record::workgrouplist.

参照元 check_master_browser_exists()・write_browse_list().

{
        struct subnet_record *subrec;
        int debuglevel = force_write ? 0 : 4;
 
        for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) {
                if (subrec->workgrouplist) {
                        struct work_record *work;

                        if( DEBUGLVL( debuglevel ) ) {
                                dbgtext( "dump_workgroups()\n " );
                                dbgtext( "dump workgroup on subnet %15s: ", subrec->subnet_name );
                                dbgtext( "netmask=%15s:\n", inet_ntoa(subrec->mask_ip) );
                        }

                        for (work = subrec->workgrouplist; work; work = work->next) {
                                DEBUGADD( debuglevel, ( "\t%s(%d) current master browser = %s\n", work->work_group,
                                        work->token, *work->local_master_browser_name ? work->local_master_browser_name : "UNKNOWN" ) );
                                if (work->serverlist) {
                                        struct server_record *servrec;            
                                        for (servrec = work->serverlist; servrec; servrec = servrec->next) {
                                                DEBUGADD( debuglevel, ( "\t\t%s %8x (%s)\n",
                                                        servrec->serv.name,
                                                        servrec->serv.type,
                                                        servrec->serv.comment ) );
                                        }
                                }
                        }
                }
        }
}

void expire_workgroups_and_servers

(

time_t

t

)

nmbd_workgroupdb.c の 310 行で定義されています。

参照先 expire_servers()・work_record::next・remove_workgroup_from_subnet()・subnet_record::workgrouplist.

参照元 expire_names_and_servers()・process_reset_browser().

{
        struct subnet_record *subrec;
   
        for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) {
                struct work_record *work;
                struct work_record *nextwork;

                for (work = subrec->workgrouplist; work; work = nextwork) {
                        nextwork = work->next;
                        expire_servers(work, t);

                        if ((work->serverlist == NULL) && (work->death_time != PERMANENT_TTL) && 
                                        ((t == (time_t)-1) || (work->death_time < t))) {
                                DEBUG(3,("expire_workgroups_and_servers: Removing timed out workgroup %s\n",
                                                work->work_group));
                                remove_workgroup_from_subnet(subrec, work);
                        }
                }
        }
}

---

変数

uint16 samba_nb_type

nmbd_namelistdb.c の 26 行で定義されています。

int workgroup_count = 0

nmbd_workgroupdb.c の 28 行で定義されています。

参照元 create_workgroup().

---