spin_unlock_bh(&tn->nametbl_lock);
}
-/**
- * subseq_list - print specified sub-sequence contents into the given buffer
- */
-static int subseq_list(struct sub_seq *sseq, char *buf, int len, u32 depth,
- u32 index)
-{
- char portIdStr[27];
- const char *scope_str[] = {"", " zone", " cluster", " node"};
- struct publication *publ;
- struct name_info *info;
- int ret;
-
- ret = tipc_snprintf(buf, len, "%-10u %-10u ", sseq->lower, sseq->upper);
-
- if (depth == 2) {
- ret += tipc_snprintf(buf - ret, len + ret, "\n");
- return ret;
- }
-
- info = sseq->info;
-
- list_for_each_entry(publ, &info->zone_list, zone_list) {
- sprintf(portIdStr, "<%u.%u.%u:%u>",
- tipc_zone(publ->node), tipc_cluster(publ->node),
- tipc_node(publ->node), publ->ref);
- ret += tipc_snprintf(buf + ret, len - ret, "%-26s ", portIdStr);
- if (depth > 3) {
- ret += tipc_snprintf(buf + ret, len - ret, "%-10u %s",
- publ->key, scope_str[publ->scope]);
- }
- if (!list_is_last(&publ->zone_list, &info->zone_list))
- ret += tipc_snprintf(buf + ret, len - ret,
- "\n%33s", " ");
- }
-
- ret += tipc_snprintf(buf + ret, len - ret, "\n");
- return ret;
-}
-
-/**
- * nameseq_list - print specified name sequence contents into the given buffer
- */
-static int nameseq_list(struct name_seq *seq, char *buf, int len, u32 depth,
- u32 type, u32 lowbound, u32 upbound, u32 index)
-{
- struct sub_seq *sseq;
- char typearea[11];
- int ret = 0;
-
- if (seq->first_free == 0)
- return 0;
-
- sprintf(typearea, "%-10u", seq->type);
-
- if (depth == 1) {
- ret += tipc_snprintf(buf, len, "%s\n", typearea);
- return ret;
- }
-
- for (sseq = seq->sseqs; sseq != &seq->sseqs[seq->first_free]; sseq++) {
- if ((lowbound <= sseq->upper) && (upbound >= sseq->lower)) {
- ret += tipc_snprintf(buf + ret, len - ret, "%s ",
- typearea);
- spin_lock_bh(&seq->lock);
- ret += subseq_list(sseq, buf + ret, len - ret,
- depth, index);
- spin_unlock_bh(&seq->lock);
- sprintf(typearea, "%10s", " ");
- }
- }
- return ret;
-}
-
-/**
- * nametbl_header - print name table header into the given buffer
- */
-static int nametbl_header(char *buf, int len, u32 depth)
-{
- const char *header[] = {
- "Type ",
- "Lower Upper ",
- "Port Identity ",
- "Publication Scope"
- };
-
- int i;
- int ret = 0;
-
- if (depth > 4)
- depth = 4;
- for (i = 0; i < depth; i++)
- ret += tipc_snprintf(buf + ret, len - ret, header[i]);
- ret += tipc_snprintf(buf + ret, len - ret, "\n");
- return ret;
-}
-
-/**
- * nametbl_list - print specified name table contents into the given buffer
- */
-static int nametbl_list(struct net *net, char *buf, int len, u32 depth_info,
- u32 type, u32 lowbound, u32 upbound)
-{
- struct tipc_net *tn = net_generic(net, tipc_net_id);
- struct hlist_head *seq_head;
- struct name_seq *seq;
- int all_types;
- int ret = 0;
- u32 depth;
- u32 i;
-
- all_types = (depth_info & TIPC_NTQ_ALLTYPES);
- depth = (depth_info & ~TIPC_NTQ_ALLTYPES);
-
- if (depth == 0)
- return 0;
-
- if (all_types) {
- /* display all entries in name table to specified depth */
- ret += nametbl_header(buf, len, depth);
- lowbound = 0;
- upbound = ~0;
- for (i = 0; i < TIPC_NAMETBL_SIZE; i++) {
- seq_head = &tn->nametbl->seq_hlist[i];
- hlist_for_each_entry_rcu(seq, seq_head, ns_list) {
- ret += nameseq_list(seq, buf + ret, len - ret,
- depth, seq->type,
- lowbound, upbound, i);
- }
- }
- } else {
- /* display only the sequence that matches the specified type */
- if (upbound < lowbound) {
- ret += tipc_snprintf(buf + ret, len - ret,
- "invalid name sequence specified\n");
- return ret;
- }
- ret += nametbl_header(buf + ret, len - ret, depth);
- i = hash(type);
- seq_head = &tn->nametbl->seq_hlist[i];
- hlist_for_each_entry_rcu(seq, seq_head, ns_list) {
- if (seq->type == type) {
- ret += nameseq_list(seq, buf + ret, len - ret,
- depth, type,
- lowbound, upbound, i);
- break;
- }
- }
- }
- return ret;
-}
-
-struct sk_buff *tipc_nametbl_get(struct net *net, const void *req_tlv_area,
- int req_tlv_space)
-{
- struct sk_buff *buf;
- struct tipc_name_table_query *argv;
- struct tlv_desc *rep_tlv;
- char *pb;
- int pb_len;
- int str_len;
-
- if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NAME_TBL_QUERY))
- return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
-
- buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
- if (!buf)
- return NULL;
-
- rep_tlv = (struct tlv_desc *)buf->data;
- pb = TLV_DATA(rep_tlv);
- pb_len = ULTRA_STRING_MAX_LEN;
- argv = (struct tipc_name_table_query *)TLV_DATA(req_tlv_area);
- rcu_read_lock();
- str_len = nametbl_list(net, pb, pb_len, ntohl(argv->depth),
- ntohl(argv->type),
- ntohl(argv->lowbound), ntohl(argv->upbound));
- rcu_read_unlock();
- str_len += 1; /* for "\0" */
- skb_put(buf, TLV_SPACE(str_len));
- TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
-
- return buf;
-}
-
int tipc_nametbl_init(struct net *net)
{
struct tipc_net *tn = net_generic(net, tipc_net_id);
projects / deliverable / linux.git / blobdiff