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-rw-r--r--net/tipc/bcast.c63
-rw-r--r--net/tipc/bearer.c10
-rw-r--r--net/tipc/bearer.h2
-rw-r--r--net/tipc/config.c27
-rw-r--r--net/tipc/core.h4
-rw-r--r--net/tipc/discover.c6
-rw-r--r--net/tipc/link.c130
-rw-r--r--net/tipc/log.c47
-rw-r--r--net/tipc/name_table.c88
-rw-r--r--net/tipc/port.c58
10 files changed, 213 insertions, 222 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index fef3689bcf23..e4e6d8cd47e6 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -701,48 +701,43 @@ void tipc_bcbearer_sort(void)
int tipc_bclink_stats(char *buf, const u32 buf_size)
{
- struct print_buf pb;
+ int ret;
+ struct tipc_stats *s;
if (!bcl)
return 0;
- tipc_printbuf_init(&pb, buf, buf_size);
-
spin_lock_bh(&bc_lock);
- tipc_printf(&pb, "Link <%s>\n"
- " Window:%u packets\n",
- bcl->name, bcl->queue_limit[0]);
- tipc_printf(&pb, " RX packets:%u fragments:%u/%u bundles:%u/%u\n",
- bcl->stats.recv_info,
- bcl->stats.recv_fragments,
- bcl->stats.recv_fragmented,
- bcl->stats.recv_bundles,
- bcl->stats.recv_bundled);
- tipc_printf(&pb, " TX packets:%u fragments:%u/%u bundles:%u/%u\n",
- bcl->stats.sent_info,
- bcl->stats.sent_fragments,
- bcl->stats.sent_fragmented,
- bcl->stats.sent_bundles,
- bcl->stats.sent_bundled);
- tipc_printf(&pb, " RX naks:%u defs:%u dups:%u\n",
- bcl->stats.recv_nacks,
- bcl->stats.deferred_recv,
- bcl->stats.duplicates);
- tipc_printf(&pb, " TX naks:%u acks:%u dups:%u\n",
- bcl->stats.sent_nacks,
- bcl->stats.sent_acks,
- bcl->stats.retransmitted);
- tipc_printf(&pb, " Congestion bearer:%u link:%u Send queue max:%u avg:%u\n",
- bcl->stats.bearer_congs,
- bcl->stats.link_congs,
- bcl->stats.max_queue_sz,
- bcl->stats.queue_sz_counts
- ? (bcl->stats.accu_queue_sz / bcl->stats.queue_sz_counts)
- : 0);
+ s = &bcl->stats;
+
+ ret = tipc_snprintf(buf, buf_size, "Link <%s>\n"
+ " Window:%u packets\n",
+ bcl->name, bcl->queue_limit[0]);
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " RX packets:%u fragments:%u/%u bundles:%u/%u\n",
+ s->recv_info, s->recv_fragments,
+ s->recv_fragmented, s->recv_bundles,
+ s->recv_bundled);
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " TX packets:%u fragments:%u/%u bundles:%u/%u\n",
+ s->sent_info, s->sent_fragments,
+ s->sent_fragmented, s->sent_bundles,
+ s->sent_bundled);
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " RX naks:%u defs:%u dups:%u\n",
+ s->recv_nacks, s->deferred_recv, s->duplicates);
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " TX naks:%u acks:%u dups:%u\n",
+ s->sent_nacks, s->sent_acks, s->retransmitted);
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " Congestion bearer:%u link:%u Send queue max:%u avg:%u\n",
+ s->bearer_congs, s->link_congs, s->max_queue_sz,
+ s->queue_sz_counts ?
+ (s->accu_queue_sz / s->queue_sz_counts) : 0);
spin_unlock_bh(&bc_lock);
- return tipc_printbuf_validate(&pb);
+ return ret;
}
int tipc_bclink_reset_stats(void)
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 1840e1fadd2e..09e71241265d 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -130,21 +130,23 @@ exit:
/**
* tipc_media_addr_printf - record media address in print buffer
*/
-void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a)
+void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a)
{
char addr_str[MAX_ADDR_STR];
struct tipc_media *m_ptr;
+ int ret;
m_ptr = media_find_id(a->media_id);
if (m_ptr && !m_ptr->addr2str(a, addr_str, sizeof(addr_str)))
- tipc_printf(pb, "%s(%s)", m_ptr->name, addr_str);
+ ret = tipc_snprintf(buf, len, "%s(%s)", m_ptr->name, addr_str);
else {
u32 i;
- tipc_printf(pb, "UNKNOWN(%u)", a->media_id);
+ ret = tipc_snprintf(buf, len, "UNKNOWN(%u)", a->media_id);
for (i = 0; i < sizeof(a->value); i++)
- tipc_printf(pb, "-%02x", a->value[i]);
+ ret += tipc_snprintf(buf - ret, len + ret,
+ "-%02x", a->value[i]);
}
}
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 4680de118aff..dd4c2abf08e7 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -179,7 +179,7 @@ void tipc_eth_media_stop(void);
int tipc_media_set_priority(const char *name, u32 new_value);
int tipc_media_set_window(const char *name, u32 new_value);
-void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a);
+void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a);
struct sk_buff *tipc_media_get_names(void);
struct sk_buff *tipc_bearer_get_names(void);
diff --git a/net/tipc/config.c b/net/tipc/config.c
index 7978fdd99299..96cfbf834a10 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -39,6 +39,8 @@
#include "name_table.h"
#include "config.h"
+#define REPLY_TRUNCATED "<truncated>\n"
+
static u32 config_port_ref;
static DEFINE_SPINLOCK(config_lock);
@@ -104,13 +106,12 @@ struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string)
return buf;
}
-#define MAX_STATS_INFO 2000
-
static struct sk_buff *tipc_show_stats(void)
{
struct sk_buff *buf;
struct tlv_desc *rep_tlv;
- struct print_buf pb;
+ char *pb;
+ int pb_len;
int str_len;
u32 value;
@@ -121,17 +122,16 @@ static struct sk_buff *tipc_show_stats(void)
if (value != 0)
return tipc_cfg_reply_error_string("unsupported argument");
- buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_STATS_INFO));
+ buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
if (buf == NULL)
return NULL;
rep_tlv = (struct tlv_desc *)buf->data;
- tipc_printbuf_init(&pb, (char *)TLV_DATA(rep_tlv), MAX_STATS_INFO);
-
- tipc_printf(&pb, "TIPC version " TIPC_MOD_VER "\n");
+ pb = TLV_DATA(rep_tlv);
+ pb_len = ULTRA_STRING_MAX_LEN;
- /* Use additional tipc_printf()'s to return more info ... */
- str_len = tipc_printbuf_validate(&pb);
+ str_len = tipc_snprintf(pb, pb_len, "TIPC version " TIPC_MOD_VER "\n");
+ str_len += 1; /* for "\0" */
skb_put(buf, TLV_SPACE(str_len));
TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
@@ -408,6 +408,15 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
break;
}
+ WARN_ON(rep_tlv_buf->len > TLV_SPACE(ULTRA_STRING_MAX_LEN));
+
+ /* Append an error message if we cannot return all requested data */
+ if (rep_tlv_buf->len == TLV_SPACE(ULTRA_STRING_MAX_LEN)) {
+ if (*(rep_tlv_buf->data + ULTRA_STRING_MAX_LEN) != '\0')
+ sprintf(rep_tlv_buf->data + rep_tlv_buf->len -
+ sizeof(REPLY_TRUNCATED) - 1, REPLY_TRUNCATED);
+ }
+
/* Return reply buffer */
exit:
spin_unlock_bh(&config_lock);
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 600c433e1467..4dcdb4859026 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -60,6 +60,8 @@
#define TIPC_MOD_VER "2.0.0"
+#define ULTRA_STRING_MAX_LEN 32768
+
struct tipc_msg; /* msg.h */
struct print_buf; /* log.h */
@@ -82,7 +84,7 @@ extern struct print_buf *const TIPC_NULL;
extern struct print_buf *const TIPC_CONS;
extern struct print_buf *const TIPC_LOG;
-void tipc_printf(struct print_buf *, const char *fmt, ...);
+int tipc_snprintf(char *buf, int len, const char *fmt, ...);
/*
* TIPC_OUTPUT is the destination print buffer for system messages.
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 2f91f3770097..50eaa403eb6e 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -100,12 +100,10 @@ static void disc_dupl_alert(struct tipc_bearer *b_ptr, u32 node_addr,
{
char node_addr_str[16];
char media_addr_str[64];
- struct print_buf pb;
tipc_addr_string_fill(node_addr_str, node_addr);
- tipc_printbuf_init(&pb, media_addr_str, sizeof(media_addr_str));
- tipc_media_addr_printf(&pb, media_addr);
- tipc_printbuf_validate(&pb);
+ tipc_media_addr_printf(media_addr_str, sizeof(media_addr_str),
+ media_addr);
pr_warn("Duplicate %s using %s seen on <%s>\n", node_addr_str,
media_addr_str, b_ptr->name);
}
diff --git a/net/tipc/link.c b/net/tipc/link.c
index a9a8b866d30a..1c1e6151875e 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2866,112 +2866,114 @@ static u32 percent(u32 count, u32 total)
*/
static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
{
- struct print_buf pb;
- struct tipc_link *l_ptr;
+ struct tipc_link *l;
+ struct tipc_stats *s;
struct tipc_node *node;
char *status;
u32 profile_total = 0;
+ int ret;
if (!strcmp(name, tipc_bclink_name))
return tipc_bclink_stats(buf, buf_size);
- tipc_printbuf_init(&pb, buf, buf_size);
-
read_lock_bh(&tipc_net_lock);
- l_ptr = link_find_link(name, &node);
- if (!l_ptr) {
+ l = link_find_link(name, &node);
+ if (!l) {
read_unlock_bh(&tipc_net_lock);
return 0;
}
tipc_node_lock(node);
+ s = &l->stats;
- if (tipc_link_is_active(l_ptr))
+ if (tipc_link_is_active(l))
status = "ACTIVE";
- else if (tipc_link_is_up(l_ptr))
+ else if (tipc_link_is_up(l))
status = "STANDBY";
else
status = "DEFUNCT";
- tipc_printf(&pb, "Link <%s>\n"
- " %s MTU:%u Priority:%u Tolerance:%u ms"
- " Window:%u packets\n",
- l_ptr->name, status, l_ptr->max_pkt,
- l_ptr->priority, l_ptr->tolerance, l_ptr->queue_limit[0]);
- tipc_printf(&pb, " RX packets:%u fragments:%u/%u bundles:%u/%u\n",
- l_ptr->next_in_no - l_ptr->stats.recv_info,
- l_ptr->stats.recv_fragments,
- l_ptr->stats.recv_fragmented,
- l_ptr->stats.recv_bundles,
- l_ptr->stats.recv_bundled);
- tipc_printf(&pb, " TX packets:%u fragments:%u/%u bundles:%u/%u\n",
- l_ptr->next_out_no - l_ptr->stats.sent_info,
- l_ptr->stats.sent_fragments,
- l_ptr->stats.sent_fragmented,
- l_ptr->stats.sent_bundles,
- l_ptr->stats.sent_bundled);
- profile_total = l_ptr->stats.msg_length_counts;
+
+ ret = tipc_snprintf(buf, buf_size, "Link <%s>\n"
+ " %s MTU:%u Priority:%u Tolerance:%u ms"
+ " Window:%u packets\n",
+ l->name, status, l->max_pkt, l->priority,
+ l->tolerance, l->queue_limit[0]);
+
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " RX packets:%u fragments:%u/%u bundles:%u/%u\n",
+ l->next_in_no - s->recv_info, s->recv_fragments,
+ s->recv_fragmented, s->recv_bundles,
+ s->recv_bundled);
+
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " TX packets:%u fragments:%u/%u bundles:%u/%u\n",
+ l->next_out_no - s->sent_info, s->sent_fragments,
+ s->sent_fragmented, s->sent_bundles,
+ s->sent_bundled);
+
+ profile_total = s->msg_length_counts;
if (!profile_total)
profile_total = 1;
- tipc_printf(&pb, " TX profile sample:%u packets average:%u octets\n"
- " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% "
- "-16384:%u%% -32768:%u%% -66000:%u%%\n",
- l_ptr->stats.msg_length_counts,
- l_ptr->stats.msg_lengths_total / profile_total,
- percent(l_ptr->stats.msg_length_profile[0], profile_total),
- percent(l_ptr->stats.msg_length_profile[1], profile_total),
- percent(l_ptr->stats.msg_length_profile[2], profile_total),
- percent(l_ptr->stats.msg_length_profile[3], profile_total),
- percent(l_ptr->stats.msg_length_profile[4], profile_total),
- percent(l_ptr->stats.msg_length_profile[5], profile_total),
- percent(l_ptr->stats.msg_length_profile[6], profile_total));
- tipc_printf(&pb, " RX states:%u probes:%u naks:%u defs:%u dups:%u\n",
- l_ptr->stats.recv_states,
- l_ptr->stats.recv_probes,
- l_ptr->stats.recv_nacks,
- l_ptr->stats.deferred_recv,
- l_ptr->stats.duplicates);
- tipc_printf(&pb, " TX states:%u probes:%u naks:%u acks:%u dups:%u\n",
- l_ptr->stats.sent_states,
- l_ptr->stats.sent_probes,
- l_ptr->stats.sent_nacks,
- l_ptr->stats.sent_acks,
- l_ptr->stats.retransmitted);
- tipc_printf(&pb, " Congestion bearer:%u link:%u Send queue max:%u avg:%u\n",
- l_ptr->stats.bearer_congs,
- l_ptr->stats.link_congs,
- l_ptr->stats.max_queue_sz,
- l_ptr->stats.queue_sz_counts
- ? (l_ptr->stats.accu_queue_sz / l_ptr->stats.queue_sz_counts)
- : 0);
+
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " TX profile sample:%u packets average:%u octets\n"
+ " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% "
+ "-16384:%u%% -32768:%u%% -66000:%u%%\n",
+ s->msg_length_counts,
+ s->msg_lengths_total / profile_total,
+ percent(s->msg_length_profile[0], profile_total),
+ percent(s->msg_length_profile[1], profile_total),
+ percent(s->msg_length_profile[2], profile_total),
+ percent(s->msg_length_profile[3], profile_total),
+ percent(s->msg_length_profile[4], profile_total),
+ percent(s->msg_length_profile[5], profile_total),
+ percent(s->msg_length_profile[6], profile_total));
+
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " RX states:%u probes:%u naks:%u defs:%u"
+ " dups:%u\n", s->recv_states, s->recv_probes,
+ s->recv_nacks, s->deferred_recv, s->duplicates);
+
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " TX states:%u probes:%u naks:%u acks:%u"
+ " dups:%u\n", s->sent_states, s->sent_probes,
+ s->sent_nacks, s->sent_acks, s->retransmitted);
+
+ ret += tipc_snprintf(buf + ret, buf_size - ret,
+ " Congestion bearer:%u link:%u Send queue"
+ " max:%u avg:%u\n", s->bearer_congs, s->link_congs,
+ s->max_queue_sz, s->queue_sz_counts ?
+ (s->accu_queue_sz / s->queue_sz_counts) : 0);
tipc_node_unlock(node);
read_unlock_bh(&tipc_net_lock);
- return tipc_printbuf_validate(&pb);
+ return ret;
}
-#define MAX_LINK_STATS_INFO 2000
-
struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_space)
{
struct sk_buff *buf;
struct tlv_desc *rep_tlv;
int str_len;
+ int pb_len;
+ char *pb;
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_LINK_NAME))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
- buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_LINK_STATS_INFO));
+ 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;
str_len = tipc_link_stats((char *)TLV_DATA(req_tlv_area),
- (char *)TLV_DATA(rep_tlv), MAX_LINK_STATS_INFO);
+ pb, pb_len);
if (!str_len) {
kfree_skb(buf);
return tipc_cfg_reply_error_string("link not found");
}
-
+ str_len += 1; /* for "\0" */
skb_put(buf, TLV_SPACE(str_len));
TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
diff --git a/net/tipc/log.c b/net/tipc/log.c
index d01e37a61b93..fa7ce927fda5 100644
--- a/net/tipc/log.c
+++ b/net/tipc/log.c
@@ -125,40 +125,6 @@ static int tipc_printbuf_empty(struct print_buf *pb)
}
/**
- * tipc_printbuf_validate - check for print buffer overflow
- * @pb: pointer to print buffer structure
- *
- * Verifies that a print buffer has captured all data written to it.
- * If data has been lost, linearize buffer and prepend an error message
- *
- * Returns length of print buffer data string (including trailing NUL)
- */
-int tipc_printbuf_validate(struct print_buf *pb)
-{
- char *err = "\n\n*** PRINT BUFFER OVERFLOW ***\n\n";
- char *cp_buf;
- struct print_buf cb;
-
- if (!pb->buf)
- return 0;
-
- if (pb->buf[pb->size - 1] == 0) {
- cp_buf = kmalloc(pb->size, GFP_ATOMIC);
- if (cp_buf) {
- tipc_printbuf_init(&cb, cp_buf, pb->size);
- tipc_printbuf_move(&cb, pb);
- tipc_printbuf_move(pb, &cb);
- kfree(cp_buf);
- memcpy(pb->buf, err, strlen(err));
- } else {
- tipc_printbuf_reset(pb);
- tipc_printf(pb, err);
- }
- }
- return pb->crs - pb->buf + 1;
-}
-
-/**
* tipc_printbuf_move - move print buffer contents to another print buffer
* @pb_to: pointer to destination print buffer structure
* @pb_from: pointer to source print buffer structure
@@ -204,23 +170,20 @@ static void tipc_printbuf_move(struct print_buf *pb_to,
}
/**
- * tipc_printf - append formatted output to print buffer
- * @pb: pointer to print buffer
+ * tipc_snprintf - append formatted output to print buffer
+ * @buf: pointer to print buffer
+ * @len: buffer length
* @fmt: formatted info to be printed
*/
-void tipc_printf(struct print_buf *pb, const char *fmt, ...)
+int tipc_snprintf(char *buf, int len, const char *fmt, ...)
{
int i;
va_list args;
- char *buf;
- int len;
- buf = pb->crs;
- len = pb->buf + pb->size - pb->crs;
va_start(args, fmt);
i = vscnprintf(buf, len, fmt, args);
va_end(args);
- pb->crs += i;
+ return i;
}
/**
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);
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 2cbac3956fc9..07c42fba672b 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -581,67 +581,73 @@ exit:
kfree_skb(buf);
}
-static void port_print(struct tipc_port *p_ptr, struct print_buf *buf, int full_id)
+static int port_print(struct tipc_port *p_ptr, char *buf, int len, int full_id)
{
struct publication *publ;
+ int ret;
if (full_id)
- tipc_printf(buf, "<%u.%u.%u:%u>:",
- tipc_zone(tipc_own_addr), tipc_cluster(tipc_own_addr),
- tipc_node(tipc_own_addr), p_ptr->ref);
+ ret = tipc_snprintf(buf, len, "<%u.%u.%u:%u>:",
+ tipc_zone(tipc_own_addr),
+ tipc_cluster(tipc_own_addr),
+ tipc_node(tipc_own_addr), p_ptr->ref);
else
- tipc_printf(buf, "%-10u:", p_ptr->ref);
+ ret = tipc_snprintf(buf, len, "%-10u:", p_ptr->ref);
if (p_ptr->connected) {
u32 dport = port_peerport(p_ptr);
u32 destnode = port_peernode(p_ptr);
- tipc_printf(buf, " connected to <%u.%u.%u:%u>",
- tipc_zone(destnode), tipc_cluster(destnode),
- tipc_node(destnode), dport);
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " connected to <%u.%u.%u:%u>",
+ tipc_zone(destnode),
+ tipc_cluster(destnode),
+ tipc_node(destnode), dport);
if (p_ptr->conn_type != 0)
- tipc_printf(buf, " via {%u,%u}",
- p_ptr->conn_type,
- p_ptr->conn_instance);
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " via {%u,%u}", p_ptr->conn_type,
+ p_ptr->conn_instance);
} else if (p_ptr->published) {
- tipc_printf(buf, " bound to");
+ ret += tipc_snprintf(buf + ret, len - ret, " bound to");
list_for_each_entry(publ, &p_ptr->publications, pport_list) {
if (publ->lower == publ->upper)
- tipc_printf(buf, " {%u,%u}", publ->type,
- publ->lower);
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " {%u,%u}", publ->type,
+ publ->lower);
else
- tipc_printf(buf, " {%u,%u,%u}", publ->type,
- publ->lower, publ->upper);
+ ret += tipc_snprintf(buf + ret, len - ret,
+ " {%u,%u,%u}", publ->type,
+ publ->lower, publ->upper);
}
}
- tipc_printf(buf, "\n");
+ ret += tipc_snprintf(buf + ret, len - ret, "\n");
+ return ret;
}
-#define MAX_PORT_QUERY 32768
-
struct sk_buff *tipc_port_get_ports(void)
{
struct sk_buff *buf;
struct tlv_desc *rep_tlv;
- struct print_buf pb;
+ char *pb;
+ int pb_len;
struct tipc_port *p_ptr;
- int str_len;
+ int str_len = 0;
- buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_PORT_QUERY));
+ 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;
- tipc_printbuf_init(&pb, TLV_DATA(rep_tlv), MAX_PORT_QUERY);
spin_lock_bh(&tipc_port_list_lock);
list_for_each_entry(p_ptr, &ports, port_list) {
spin_lock_bh(p_ptr->lock);
- port_print(p_ptr, &pb, 0);
+ str_len += port_print(p_ptr, pb, pb_len, 0);
spin_unlock_bh(p_ptr->lock);
}
spin_unlock_bh(&tipc_port_list_lock);
- str_len = tipc_printbuf_validate(&pb);
-
+ str_len += 1; /* for "\0" */
skb_put(buf, TLV_SPACE(str_len));
TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 05:11:16 +0000