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authorRalf Baechle <ralf@linux-mips.org>2005-09-06 15:49:39 -0700
committerDavid S. Miller <davem@davemloft.net>2005-09-06 15:49:39 -0700
commitf75268cd6cbd24e6c70ff1390f4de5d0bb618539 (patch)
treeade569781c444bd7f0d648a38cab205d7624e286
parentf2c383988d68c91a7d474b7cf26c0a2df49bbafe (diff)
downloadlinux-f75268cd6cbd24e6c70ff1390f4de5d0bb618539.tar.bz2
[AX25]: Make ax2asc thread-proof
Ax2asc was still using a static buffer for all invocations which isn't exactly SMP-safe. Change ax2asc to take an additional result buffer as the argument. Change all callers to provide such a buffer. Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/ax25.h2
-rw-r--r--net/ax25/af_ax25.c7
-rw-r--r--net/ax25/ax25_addr.c3
-rw-r--r--net/ax25/ax25_route.c7
-rw-r--r--net/ax25/ax25_uid.c4
-rw-r--r--net/netrom/af_netrom.c7
-rw-r--r--net/netrom/nr_route.c8
-rw-r--r--net/rose/af_rose.c6
-rw-r--r--net/rose/rose_route.c14
-rw-r--r--net/rose/rose_subr.c5
10 files changed, 39 insertions, 24 deletions
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 926eed543023..364b046e9f47 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -257,7 +257,7 @@ extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
/* ax25_addr.c */
extern ax25_address null_ax25_address;
-extern char *ax2asc(ax25_address *);
+extern char *ax2asc(char *buf, ax25_address *);
extern ax25_address *asc2ax(char *);
extern int ax25cmp(ax25_address *, ax25_address *);
extern int ax25digicmp(ax25_digi *, ax25_digi *);
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index ea43dfb774e2..ed705ddad56b 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1874,6 +1874,7 @@ static void ax25_info_stop(struct seq_file *seq, void *v)
static int ax25_info_show(struct seq_file *seq, void *v)
{
ax25_cb *ax25 = v;
+ char buf[11];
int k;
@@ -1885,13 +1886,13 @@ static int ax25_info_show(struct seq_file *seq, void *v)
seq_printf(seq, "%8.8lx %s %s%s ",
(long) ax25,
ax25->ax25_dev == NULL? "???" : ax25->ax25_dev->dev->name,
- ax2asc(&ax25->source_addr),
+ ax2asc(buf, &ax25->source_addr),
ax25->iamdigi? "*":"");
- seq_printf(seq, "%s", ax2asc(&ax25->dest_addr));
+ seq_printf(seq, "%s", ax2asc(buf, &ax25->dest_addr));
for (k=0; (ax25->digipeat != NULL) && (k < ax25->digipeat->ndigi); k++) {
seq_printf(seq, ",%s%s",
- ax2asc(&ax25->digipeat->calls[k]),
+ ax2asc(buf, &ax25->digipeat->calls[k]),
ax25->digipeat->repeated[k]? "*":"");
}
diff --git a/net/ax25/ax25_addr.c b/net/ax25/ax25_addr.c
index f4fa6dfb846e..dca179daf415 100644
--- a/net/ax25/ax25_addr.c
+++ b/net/ax25/ax25_addr.c
@@ -36,9 +36,8 @@ ax25_address null_ax25_address = {{0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x00}};
/*
* ax25 -> ascii conversion
*/
-char *ax2asc(ax25_address *a)
+char *ax2asc(char *buf, ax25_address *a)
{
- static char buf[11];
char c, *s;
int n;
diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index c288526da4ce..26b77d972220 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -298,6 +298,8 @@ static void ax25_rt_seq_stop(struct seq_file *seq, void *v)
static int ax25_rt_seq_show(struct seq_file *seq, void *v)
{
+ char buf[11];
+
if (v == SEQ_START_TOKEN)
seq_puts(seq, "callsign dev mode digipeaters\n");
else {
@@ -308,7 +310,7 @@ static int ax25_rt_seq_show(struct seq_file *seq, void *v)
if (ax25cmp(&ax25_rt->callsign, &null_ax25_address) == 0)
callsign = "default";
else
- callsign = ax2asc(&ax25_rt->callsign);
+ callsign = ax2asc(buf, &ax25_rt->callsign);
seq_printf(seq, "%-9s %-4s",
callsign,
@@ -328,7 +330,8 @@ static int ax25_rt_seq_show(struct seq_file *seq, void *v)
if (ax25_rt->digipeat != NULL)
for (i = 0; i < ax25_rt->digipeat->ndigi; i++)
- seq_printf(seq, " %s", ax2asc(&ax25_rt->digipeat->calls[i]));
+ seq_printf(seq, " %s",
+ ax2asc(buf, &ax25_rt->digipeat->calls[i]));
seq_puts(seq, "\n");
}
diff --git a/net/ax25/ax25_uid.c b/net/ax25/ax25_uid.c
index a8b3822f3ee4..d53cc8615865 100644
--- a/net/ax25/ax25_uid.c
+++ b/net/ax25/ax25_uid.c
@@ -168,12 +168,14 @@ static void ax25_uid_seq_stop(struct seq_file *seq, void *v)
static int ax25_uid_seq_show(struct seq_file *seq, void *v)
{
+ char buf[11];
+
if (v == SEQ_START_TOKEN)
seq_printf(seq, "Policy: %d\n", ax25_uid_policy);
else {
struct ax25_uid_assoc *pt = v;
- seq_printf(seq, "%6d %s\n", pt->uid, ax2asc(&pt->call));
+ seq_printf(seq, "%6d %s\n", pt->uid, ax2asc(buf, &pt->call));
}
return 0;
}
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 4b53de982114..f4578c759ffc 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1261,6 +1261,7 @@ static int nr_info_show(struct seq_file *seq, void *v)
struct net_device *dev;
struct nr_sock *nr;
const char *devname;
+ char buf[11];
if (v == SEQ_START_TOKEN)
seq_puts(seq,
@@ -1276,11 +1277,11 @@ static int nr_info_show(struct seq_file *seq, void *v)
else
devname = dev->name;
- seq_printf(seq, "%-9s ", ax2asc(&nr->user_addr));
- seq_printf(seq, "%-9s ", ax2asc(&nr->dest_addr));
+ seq_printf(seq, "%-9s ", ax2asc(buf, &nr->user_addr));
+ seq_printf(seq, "%-9s ", ax2asc(buf, &nr->dest_addr));
seq_printf(seq,
"%-9s %-3s %02X/%02X %02X/%02X %2d %3d %3d %3d %3lu/%03lu %2lu/%02lu %3lu/%03lu %3lu/%03lu %2d/%02d %3d %5d %5d %ld\n",
- ax2asc(&nr->source_addr),
+ ax2asc(buf, &nr->source_addr),
devname,
nr->my_index,
nr->my_id,
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index 7a86b36cba50..b3b9097c87c7 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -881,6 +881,7 @@ static void nr_node_stop(struct seq_file *seq, void *v)
static int nr_node_show(struct seq_file *seq, void *v)
{
+ char buf[11];
int i;
if (v == SEQ_START_TOKEN)
@@ -890,7 +891,7 @@ static int nr_node_show(struct seq_file *seq, void *v)
struct nr_node *nr_node = v;
nr_node_lock(nr_node);
seq_printf(seq, "%-9s %-7s %d %d",
- ax2asc(&nr_node->callsign),
+ ax2asc(buf, &nr_node->callsign),
(nr_node->mnemonic[0] == '\0') ? "*" : nr_node->mnemonic,
nr_node->which + 1,
nr_node->count);
@@ -964,6 +965,7 @@ static void nr_neigh_stop(struct seq_file *seq, void *v)
static int nr_neigh_show(struct seq_file *seq, void *v)
{
+ char buf[11];
int i;
if (v == SEQ_START_TOKEN)
@@ -973,7 +975,7 @@ static int nr_neigh_show(struct seq_file *seq, void *v)
seq_printf(seq, "%05d %-9s %-4s %3d %d %3d %3d",
nr_neigh->number,
- ax2asc(&nr_neigh->callsign),
+ ax2asc(buf, &nr_neigh->callsign),
nr_neigh->dev ? nr_neigh->dev->name : "???",
nr_neigh->quality,
nr_neigh->locked,
@@ -983,7 +985,7 @@ static int nr_neigh_show(struct seq_file *seq, void *v)
if (nr_neigh->digipeat != NULL) {
for (i = 0; i < nr_neigh->digipeat->ndigi; i++)
seq_printf(seq, " %s",
- ax2asc(&nr_neigh->digipeat->calls[i]));
+ ax2asc(buf, &nr_neigh->digipeat->calls[i]));
}
seq_puts(seq, "\n");
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index c6e59f84c3ae..3077878ed4f0 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1363,6 +1363,8 @@ static void rose_info_stop(struct seq_file *seq, void *v)
static int rose_info_show(struct seq_file *seq, void *v)
{
+ char buf[11];
+
if (v == SEQ_START_TOKEN)
seq_puts(seq,
"dest_addr dest_call src_addr src_call dev lci neigh st vs vr va t t1 t2 t3 hb idle Snd-Q Rcv-Q inode\n");
@@ -1380,12 +1382,12 @@ static int rose_info_show(struct seq_file *seq, void *v)
seq_printf(seq, "%-10s %-9s ",
rose2asc(&rose->dest_addr),
- ax2asc(&rose->dest_call));
+ ax2asc(buf, &rose->dest_call));
if (ax25cmp(&rose->source_call, &null_ax25_address) == 0)
callsign = "??????-?";
else
- callsign = ax2asc(&rose->source_call);
+ callsign = ax2asc(buf, &rose->source_call);
seq_printf(seq,
"%-10s %-9s %-5s %3.3X %05d %d %d %d %d %3lu %3lu %3lu %3lu %3lu %3lu/%03lu %5d %5d %ld\n",
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index 4510cd7613ec..e556d92c0bc4 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -851,6 +851,7 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
unsigned char cause, diagnostic;
struct net_device *dev;
int len, res = 0;
+ char buf[11];
#if 0
if (call_in_firewall(PF_ROSE, skb->dev, skb->data, NULL, &skb) != FW_ACCEPT)
@@ -876,7 +877,7 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
if (rose_neigh == NULL) {
printk("rose_route : unknown neighbour or device %s\n",
- ax2asc(&ax25->dest_addr));
+ ax2asc(buf, &ax25->dest_addr));
goto out;
}
@@ -1178,6 +1179,7 @@ static void rose_neigh_stop(struct seq_file *seq, void *v)
static int rose_neigh_show(struct seq_file *seq, void *v)
{
+ char buf[11];
int i;
if (v == SEQ_START_TOKEN)
@@ -1189,7 +1191,7 @@ static int rose_neigh_show(struct seq_file *seq, void *v)
/* if (!rose_neigh->loopback) { */
seq_printf(seq, "%05d %-9s %-4s %3d %3d %3s %3s %3lu %3lu",
rose_neigh->number,
- (rose_neigh->loopback) ? "RSLOOP-0" : ax2asc(&rose_neigh->callsign),
+ (rose_neigh->loopback) ? "RSLOOP-0" : ax2asc(buf, &rose_neigh->callsign),
rose_neigh->dev ? rose_neigh->dev->name : "???",
rose_neigh->count,
rose_neigh->use,
@@ -1200,7 +1202,7 @@ static int rose_neigh_show(struct seq_file *seq, void *v)
if (rose_neigh->digipeat != NULL) {
for (i = 0; i < rose_neigh->digipeat->ndigi; i++)
- seq_printf(seq, " %s", ax2asc(&rose_neigh->digipeat->calls[i]));
+ seq_printf(seq, " %s", ax2asc(buf, &rose_neigh->digipeat->calls[i]));
}
seq_puts(seq, "\n");
@@ -1260,6 +1262,8 @@ static void rose_route_stop(struct seq_file *seq, void *v)
static int rose_route_show(struct seq_file *seq, void *v)
{
+ char buf[11];
+
if (v == SEQ_START_TOKEN)
seq_puts(seq,
"lci address callsign neigh <-> lci address callsign neigh\n");
@@ -1271,7 +1275,7 @@ static int rose_route_show(struct seq_file *seq, void *v)
"%3.3X %-10s %-9s %05d ",
rose_route->lci1,
rose2asc(&rose_route->src_addr),
- ax2asc(&rose_route->src_call),
+ ax2asc(buf, &rose_route->src_call),
rose_route->neigh1->number);
else
seq_puts(seq,
@@ -1282,7 +1286,7 @@ static int rose_route_show(struct seq_file *seq, void *v)
"%3.3X %-10s %-9s %05d\n",
rose_route->lci2,
rose2asc(&rose_route->dest_addr),
- ax2asc(&rose_route->dest_call),
+ ax2asc(buf, &rose_route->dest_call),
rose_route->neigh2->number);
else
seq_puts(seq,
diff --git a/net/rose/rose_subr.c b/net/rose/rose_subr.c
index a29a3a960fd6..02891ce2db37 100644
--- a/net/rose/rose_subr.c
+++ b/net/rose/rose_subr.c
@@ -400,6 +400,7 @@ static int rose_create_facilities(unsigned char *buffer, struct rose_sock *rose)
{
unsigned char *p = buffer + 1;
char *callsign;
+ char buf[11];
int len, nb;
/* National Facilities */
@@ -456,7 +457,7 @@ static int rose_create_facilities(unsigned char *buffer, struct rose_sock *rose)
*p++ = FAC_CCITT_DEST_NSAP;
- callsign = ax2asc(&rose->dest_call);
+ callsign = ax2asc(buf, &rose->dest_call);
*p++ = strlen(callsign) + 10;
*p++ = (strlen(callsign) + 9) * 2; /* ??? */
@@ -471,7 +472,7 @@ static int rose_create_facilities(unsigned char *buffer, struct rose_sock *rose)
*p++ = FAC_CCITT_SRC_NSAP;
- callsign = ax2asc(&rose->source_call);
+ callsign = ax2asc(buf, &rose->source_call);
*p++ = strlen(callsign) + 10;
*p++ = (strlen(callsign) + 9) * 2; /* ??? */