nmbd/nmbd_synclists.c

ソースコードを見る。

データ構造
struct	sync_record
関数
static void	callback (const char *sname, uint32 stype, const char *comment, void *state)
static void	sync_child (char *name, int nm_type, char *workgroup, struct in_addr ip, BOOL local, BOOL servers, char *fname)
void	sync_browse_lists (struct work_record *work, char *name, int nm_type, struct in_addr ip, BOOL local, BOOL servers)
static void	complete_one (struct sync_record *s, char *sname, uint32 stype, char *comment)
static void	complete_sync (struct sync_record *s)
void	sync_check_completion (void)
変数
fstring	local_machine
static struct sync_record *	syncs
static XFILE *	fp

---

関数

static void callback	(	const char *	sname,
		uint32	stype,
		const char *	comment,
		void *	state
	)			[static]

nmbd_synclists.c の 53 行で定義されています。

参照先 fp・x_fprintf().

参照元 py_tdb_hnd_traverse()・smb_readline_replacement()・sync_child()・talloc_report_depth_cb().

{
        x_fprintf(fp,"\"%s\" %08X \"%s\"\n", sname, stype, comment);
}

static void sync_child	(	char *	name,
		int	nm_type,
		char *	workgroup,
		struct in_addr	ip,
		BOOL	local,
		BOOL	servers,
		char *	fname
	)			[static]

nmbd_synclists.c の 65 行で定義されています。

参照先 callback()・cli・cli_connect()・cli_initialise()・cli_negprot()・cli_NetServerEnum()・cli_send_tconX()・cli_session_request()・cli_session_setup()・cli_set_port()・cli_shutdown()・local_machine・make_nmb_name()・cli_state::server_domain・status.

参照元 sync_browse_lists().

{
        fstring unix_workgroup;
        struct cli_state *cli;
        uint32 local_type = local ? SV_TYPE_LOCAL_LIST_ONLY : 0;
        struct nmb_name called, calling;
        NTSTATUS status;

        /* W2K DMB's return empty browse lists on port 445. Use 139.
         * Patch from Andy Levine andyl@epicrealm.com.
         */

        cli = cli_initialise();
        if (!cli) {
                return;
        }

        if (!cli_set_port(cli, 139)) {
                return;
        }

        status = cli_connect(cli, name, &ip);
        if (!NT_STATUS_IS_OK(status)) {
                return;
        }

        make_nmb_name(&calling, local_machine, 0x0);
        make_nmb_name(&called , name, nm_type);

        if (!cli_session_request(cli, &calling, &called)) {
                cli_shutdown(cli);
                return;
        }

        if (!cli_negprot(cli)) {
                cli_shutdown(cli);
                return;
        }

        if (!NT_STATUS_IS_OK(cli_session_setup(cli, "", "", 1, "", 0,
                                               workgroup))) {
                cli_shutdown(cli);
                return;
        }

        if (!cli_send_tconX(cli, "IPC$", "IPC", "", 1)) {
                cli_shutdown(cli);
                return;
        }

        /* All the cli_XX functions take UNIX character set. */
        fstrcpy(unix_workgroup, cli->server_domain ? cli->server_domain : workgroup);

        /* Fetch a workgroup list. */
        cli_NetServerEnum(cli, unix_workgroup,
                          local_type|SV_TYPE_DOMAIN_ENUM, 
                          callback, NULL);
        
        /* Now fetch a server list. */
        if (servers) {
                fstrcpy(unix_workgroup, workgroup);
                cli_NetServerEnum(cli, unix_workgroup, 
                                  local?SV_TYPE_LOCAL_LIST_ONLY:SV_TYPE_ALL,
                                  callback, NULL);
        }
        
        cli_shutdown(cli);
}

void sync_browse_lists	(	struct work_record *	work,
		char *	name,
		int	nm_type,
		struct in_addr	ip,
		BOOL	local,
		BOOL	servers
	)

nmbd_synclists.c の 143 行で定義されています。

参照先 all_string_sub()・BlockSignals()・CatchChild()・counter・sync_record::fname・fp・sync_record::ip・ismyip()・sync_record::pid・sync_record::server・sync_child()・syncs・sys_fork()・work_record::work_group・sync_record::workgroup・x_fclose()・x_fopen().

参照元 sync_all_dmbs()・sync_with_dmb()・sync_with_lmb().

{
        struct sync_record *s;
        static int counter;

        START_PROFILE(sync_browse_lists);
        /* Check we're not trying to sync with ourselves. This can
           happen if we are a domain *and* a local master browser. */
        if (ismyip(ip)) {
done:
                END_PROFILE(sync_browse_lists);
                return;
        }

        s = SMB_MALLOC_P(struct sync_record);
        if (!s) goto done;

        ZERO_STRUCTP(s);
        
        unstrcpy(s->workgroup, work->work_group);
        unstrcpy(s->server, name);
        s->ip = ip;

        slprintf(s->fname, sizeof(pstring)-1,
                 "%s/sync.%d", lp_lockdir(), counter++);
        all_string_sub(s->fname,"//", "/", 0);
        
        DLIST_ADD(syncs, s);

        /* the parent forks and returns, leaving the child to do the
           actual sync and call END_PROFILE*/
        CatchChild();
        if ((s->pid = sys_fork())) return;

        BlockSignals( False, SIGTERM );

        DEBUG(2,("Initiating browse sync for %s to %s(%s)\n",
                 work->work_group, name, inet_ntoa(ip)));

        fp = x_fopen(s->fname,O_WRONLY|O_CREAT|O_TRUNC, 0644);
        if (!fp) {
                END_PROFILE(sync_browse_lists);
                _exit(1);       
        }

        sync_child(name, nm_type, work->work_group, ip, local, servers,
                   s->fname);

        x_fclose(fp);
        END_PROFILE(sync_browse_lists);
        _exit(0);
}

static void complete_one	(	struct sync_record *	s,
		char *	sname,
		uint32	stype,
		char *	comment
	)			[static]

nmbd_synclists.c の 202 行で定義されています。

参照先 create_server_on_workgroup()・create_workgroup_on_subnet()・find_server_in_workgroup()・find_workgroup_on_subnet()・work_record::local_master_browser_name・server_record::serv・server_info_struct::type・unicast_subnet・update_server_ttl()・update_workgroup_ttl()・sync_record::workgroup.

参照元 complete_sync().

{
        struct work_record *work;
        struct server_record *servrec;

        stype &= ~SV_TYPE_LOCAL_LIST_ONLY;

        if (stype & SV_TYPE_DOMAIN_ENUM) {
                /* See if we can find the workgroup on this subnet. */
                if((work=find_workgroup_on_subnet(unicast_subnet, sname))) {
                        /* We already know about this workgroup -
                           update the ttl. */
                        update_workgroup_ttl(work,lp_max_ttl());
                } else {
                        /* Create the workgroup on the subnet. */
                        work = create_workgroup_on_subnet(unicast_subnet, 
                                                          sname, lp_max_ttl());
                        if (work) {
                                /* remember who the master is */
                                unstrcpy(work->local_master_browser_name, comment);
                        }
                }
                return;
        } 

        work = find_workgroup_on_subnet(unicast_subnet, s->workgroup);
        if (!work) {
                DEBUG(3,("workgroup %s doesn't exist on unicast subnet?\n",
                         s->workgroup));
                return;
        }

        if ((servrec = find_server_in_workgroup( work, sname))) {
                /* Check that this is not a locally known
                   server - if so ignore the entry. */
                if(!(servrec->serv.type & SV_TYPE_LOCAL_LIST_ONLY)) {
                        /* We already know about this server - update
                           the ttl. */
                        update_server_ttl(servrec, lp_max_ttl());
                        /* Update the type. */
                        servrec->serv.type = stype;
                }
                return;
        } 

        /* Create the server in the workgroup. */ 
        create_server_on_workgroup(work, sname,stype, lp_max_ttl(), comment);
}

static void complete_sync

(

struct sync_record *

s

)

[static]

nmbd_synclists.c の 256 行で定義されています。

参照先 complete_one()・fgets_slash()・sync_record::fname・sync_record::ip・line・next_token()・sync_record::server・server・type・sync_record::workgroup・x_fclose()・x_feof()・x_fopen().

参照元 sync_check_completion().

{
        XFILE *f;
        unstring server, type_str;
        unsigned type;
        pstring comment;
        pstring line;
        const char *ptr;
        int count=0;

        f = x_fopen(s->fname,O_RDONLY, 0);

        if (!f)
                return;
        
        while (!x_feof(f)) {
                
                if (!fgets_slash(line,sizeof(pstring),f))
                        continue;
                
                ptr = line;

                if (!next_token(&ptr,server,NULL,sizeof(server)) ||
                    !next_token(&ptr,type_str,NULL, sizeof(type_str)) ||
                    !next_token(&ptr,comment,NULL, sizeof(comment))) {
                        continue;
                }

                sscanf(type_str, "%X", &type);

                complete_one(s, server, type, comment);

                count++;
        }

        x_fclose(f);

        unlink(s->fname);

        DEBUG(2,("sync with %s(%s) for workgroup %s completed (%d records)\n",
                 s->server, inet_ntoa(s->ip), s->workgroup, count));
}

void sync_check_completion

(

void

)

nmbd_synclists.c の 303 行で定義されています。

参照先 complete_sync()・sync_record::next・sync_record::pid・process_exists_by_pid()・syncs.

参照元 process().

{
        struct sync_record *s, *next;

        for (s=syncs;s;s=next) {
                next = s->next;
                if (!process_exists_by_pid(s->pid)) {
                        /* it has completed - grab the info */
                        complete_sync(s);
                        DLIST_REMOVE(syncs, s);
                        ZERO_STRUCTP(s);
                        SAFE_FREE(s);
                }
        }
}

---

変数

fstring local_machine

substitute.c の 27 行で定義されています。

参照元 get_local_machine_name()・init_names()・set_local_machine_name()・sync_child().

struct sync_record* syncs [static]

nmbd_synclists.c の 44 行で定義されています。

参照元 sync_browse_lists()・sync_check_completion().

XFILE* fp [static]

nmbd_synclists.c の 46 行で定義されています。

参照元 callback()・disk_quotas()・dump_all_namelists()・dump_name_record()・dump_subnet_namelist()・dump_wins_subnet_namelist()・endlmhosts()・getlmhostsent()・initialise_wins()・load_lmhosts_file()・main()・procname()・resolve_lmhosts()・startlmhosts()・startsmbfilepwent()・sync_browse_lists()・sys_path_to_bdev()・traverse_fn()・trim_char()・wins_write_database()・wins_write_name_record()・wins_writedb_traverse_fn()・write_browse_list()・write_browse_list_entry()・writetarheader().

---