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Diffstat (limited to 'net/tipc/name_table.c')
-rw-r--r--net/tipc/name_table.c88
1 files changed, 51 insertions, 37 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index c8b0b5c3c56e..360c478b0b53 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -753,19 +753,20 @@ void tipc_nametbl_unsubscribe(struct tipc_subscription *s)
/**
* subseq_list - print specified sub-sequence contents into the given buffer
*/
-static void subseq_list(struct sub_seq *sseq, struct print_buf *buf, u32 depth,
+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;
- tipc_printf(buf, "%-10u %-10u ", sseq->lower, sseq->upper);
+ ret = tipc_snprintf(buf, len, "%-10u %-10u ", sseq->lower, sseq->upper);
if (depth == 2) {
- tipc_printf(buf, "\n");
- return;
+ ret += tipc_snprintf(buf - ret, len + ret, "\n");
+ return ret;
}
info = sseq->info;
@@ -774,52 +775,58 @@ static void subseq_list(struct sub_seq *sseq, struct print_buf *buf, u32 depth,
sprintf(portIdStr, "<%u.%u.%u:%u>",
tipc_zone(publ->node), tipc_cluster(publ->node),
tipc_node(publ->node), publ->ref);
- tipc_printf(buf, "%-26s ", portIdStr);
+ ret += tipc_snprintf(buf + ret, len - ret, "%-26s ", portIdStr);
if (depth > 3) {
- tipc_printf(buf, "%-10u %s", publ->key,
- scope_str[publ->scope]);
+ 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))
- tipc_printf(buf, "\n%33s", " ");
+ ret += tipc_snprintf(buf + ret, len - ret,
+ "\n%33s", " ");
};
- tipc_printf(buf, "\n");
+ ret += tipc_snprintf(buf + ret, len - ret, "\n");
+ return ret;
}
/**
* nameseq_list - print specified name sequence contents into the given buffer
*/
-static void nameseq_list(struct name_seq *seq, struct print_buf *buf, u32 depth,
+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;
+ return 0;
sprintf(typearea, "%-10u", seq->type);
if (depth == 1) {
- tipc_printf(buf, "%s\n", typearea);
- return;
+ 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)) {
- tipc_printf(buf, "%s ", typearea);
+ ret += tipc_snprintf(buf + ret, len - ret, "%s ",
+ typearea);
spin_lock_bh(&seq->lock);
- subseq_list(sseq, buf, depth, index);
+ 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 void nametbl_header(struct print_buf *buf, u32 depth)
+static int nametbl_header(char *buf, int len, u32 depth)
{
const char *header[] = {
"Type ",
@@ -829,24 +836,27 @@ static void nametbl_header(struct print_buf *buf, u32 depth)
};
int i;
+ int ret = 0;
if (depth > 4)
depth = 4;
for (i = 0; i < depth; i++)
- tipc_printf(buf, header[i]);
- tipc_printf(buf, "\n");
+ 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 void nametbl_list(struct print_buf *buf, u32 depth_info,
+static int nametbl_list(char *buf, int len, u32 depth_info,
u32 type, u32 lowbound, u32 upbound)
{
struct hlist_head *seq_head;
struct hlist_node *seq_node;
struct name_seq *seq;
int all_types;
+ int ret = 0;
u32 depth;
u32 i;
@@ -854,65 +864,69 @@ static void nametbl_list(struct print_buf *buf, u32 depth_info,
depth = (depth_info & ~TIPC_NTQ_ALLTYPES);
if (depth == 0)
- return;
+ return 0;
if (all_types) {
/* display all entries in name table to specified depth */
- nametbl_header(buf, depth);
+ ret += nametbl_header(buf, len, depth);
lowbound = 0;
upbound = ~0;
for (i = 0; i < tipc_nametbl_size; i++) {
seq_head = &table.types[i];
hlist_for_each_entry(seq, seq_node, seq_head, ns_list) {
- nameseq_list(seq, buf, depth, seq->type,
- lowbound, upbound, i);
+ 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) {
- tipc_printf(buf, "invalid name sequence specified\n");
- return;
+ ret += tipc_snprintf(buf + ret, len - ret,
+ "invalid name sequence specified\n");
+ return ret;
}
- nametbl_header(buf, depth);
+ ret += nametbl_header(buf + ret, len - ret, depth);
i = hash(type);
seq_head = &table.types[i];
hlist_for_each_entry(seq, seq_node, seq_head, ns_list) {
if (seq->type == type) {
- nameseq_list(seq, buf, depth, type,
- lowbound, upbound, i);
+ ret += nameseq_list(seq, buf + ret, len - ret,
+ depth, type,
+ lowbound, upbound, i);
break;
}
}
}
+ return ret;
}
-#define MAX_NAME_TBL_QUERY 32768
-
struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space)
{
struct sk_buff *buf;
struct tipc_name_table_query *argv;
struct tlv_desc *rep_tlv;
- struct print_buf b;
+ 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(MAX_NAME_TBL_QUERY));
+ buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
if (!buf)
return NULL;
rep_tlv = (struct tlv_desc *)buf->data;
- tipc_printbuf_init(&b, TLV_DATA(rep_tlv), MAX_NAME_TBL_QUERY);
+ pb = TLV_DATA(rep_tlv);
+ pb_len = ULTRA_STRING_MAX_LEN;
argv = (struct tipc_name_table_query *)TLV_DATA(req_tlv_area);
read_lock_bh(&tipc_nametbl_lock);
- nametbl_list(&b, ntohl(argv->depth), ntohl(argv->type),
- ntohl(argv->lowbound), ntohl(argv->upbound));
+ str_len = nametbl_list(pb, pb_len, ntohl(argv->depth),
+ ntohl(argv->type),
+ ntohl(argv->lowbound), ntohl(argv->upbound));
read_unlock_bh(&tipc_nametbl_lock);
- str_len = tipc_printbuf_validate(&b);
-
+ str_len += 1; /* for "\0" */
skb_put(buf, TLV_SPACE(str_len));
TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);