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authorAndrea Bittau <a.bittau@cs.ucl.ac.uk>2006-03-20 19:23:32 -0800
committerDavid S. Miller <davem@davemloft.net>2006-03-20 19:23:32 -0800
commit60fe62e789076ae7c13f7ffb35fec4b24802530d (patch)
treecc8d507a4276c3d5a2bcb72746660d485bc2e045 /net
parenta193a4abdd1f742a57f3f70b6a83c3e536876e97 (diff)
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[DCCP]: sparse endianness annotations
This also fixes the layout of dccp_hdr short sequence numbers, problem was not fatal now as we only support long (48 bits) sequence numbers. Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/dccp/ccids/ccid3.c6
-rw-r--r--net/dccp/dccp.h23
-rw-r--r--net/dccp/ipv4.c12
-rw-r--r--net/dccp/ipv6.c4
-rw-r--r--net/dccp/options.c27
-rw-r--r--net/dccp/proto.c6
6 files changed, 33 insertions, 45 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 0587f52e4af..86201631fb6 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -615,7 +615,7 @@ static int ccid3_hc_tx_parse_options(struct sock *sk, unsigned char option,
__FUNCTION__, dccp_role(sk), sk);
rc = -EINVAL;
} else {
- opt_recv->ccid3or_loss_event_rate = ntohl(*(u32 *)value);
+ opt_recv->ccid3or_loss_event_rate = ntohl(*(__be32 *)value);
ccid3_pr_debug("%s, sk=%p, LOSS_EVENT_RATE=%u\n",
dccp_role(sk), sk,
opt_recv->ccid3or_loss_event_rate);
@@ -636,7 +636,7 @@ static int ccid3_hc_tx_parse_options(struct sock *sk, unsigned char option,
__FUNCTION__, dccp_role(sk), sk);
rc = -EINVAL;
} else {
- opt_recv->ccid3or_receive_rate = ntohl(*(u32 *)value);
+ opt_recv->ccid3or_receive_rate = ntohl(*(__be32 *)value);
ccid3_pr_debug("%s, sk=%p, RECEIVE_RATE=%u\n",
dccp_role(sk), sk,
opt_recv->ccid3or_receive_rate);
@@ -777,7 +777,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk)
static void ccid3_hc_rx_insert_options(struct sock *sk, struct sk_buff *skb)
{
const struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
- u32 x_recv, pinv;
+ __be32 x_recv, pinv;
BUG_ON(hcrx == NULL);
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 93f26dd6e6c..1764adb4f15 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -262,7 +262,7 @@ extern int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
int addr_len);
extern int dccp_v4_checksum(const struct sk_buff *skb,
- const u32 saddr, const u32 daddr);
+ const __be32 saddr, const __be32 daddr);
extern int dccp_v4_send_reset(struct sock *sk,
enum dccp_reset_codes code);
@@ -270,7 +270,7 @@ extern void dccp_send_close(struct sock *sk, const int active);
extern int dccp_invalid_packet(struct sk_buff *skb);
static inline int dccp_bad_service_code(const struct sock *sk,
- const __u32 service)
+ const __be32 service)
{
const struct dccp_sock *dp = dccp_sk(sk);
@@ -334,27 +334,16 @@ static inline void dccp_hdr_set_seq(struct dccp_hdr *dh, const u64 gss)
{
struct dccp_hdr_ext *dhx = (struct dccp_hdr_ext *)((void *)dh +
sizeof(*dh));
-
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- dh->dccph_seq = htonl((gss >> 32)) >> 8;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- dh->dccph_seq = htonl((gss >> 32));
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
+ dh->dccph_seq2 = 0;
+ dh->dccph_seq = htons((gss >> 32) & 0xfffff);
dhx->dccph_seq_low = htonl(gss & 0xffffffff);
}
static inline void dccp_hdr_set_ack(struct dccp_hdr_ack_bits *dhack,
const u64 gsr)
{
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- dhack->dccph_ack_nr_high = htonl((gsr >> 32)) >> 8;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- dhack->dccph_ack_nr_high = htonl((gsr >> 32));
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
+ dhack->dccph_reserved1 = 0;
+ dhack->dccph_ack_nr_high = htons(gsr >> 32);
dhack->dccph_ack_nr_low = htonl(gsr & 0xffffffff);
}
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index aa7708fed32..be5ce57b804 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -498,9 +498,9 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
struct dccp_sock dp;
struct request_sock *req;
struct dccp_request_sock *dreq;
- const __u32 saddr = skb->nh.iph->saddr;
- const __u32 daddr = skb->nh.iph->daddr;
- const __u32 service = dccp_hdr_request(skb)->dccph_req_service;
+ const __be32 saddr = skb->nh.iph->saddr;
+ const __be32 daddr = skb->nh.iph->daddr;
+ const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
@@ -662,8 +662,8 @@ static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
return sk;
}
-int dccp_v4_checksum(const struct sk_buff *skb, const u32 saddr,
- const u32 daddr)
+int dccp_v4_checksum(const struct sk_buff *skb, const __be32 saddr,
+ const __be32 daddr)
{
const struct dccp_hdr* dh = dccp_hdr(skb);
int checksum_len;
@@ -683,7 +683,7 @@ int dccp_v4_checksum(const struct sk_buff *skb, const u32 saddr,
}
static int dccp_v4_verify_checksum(struct sk_buff *skb,
- const u32 saddr, const u32 daddr)
+ const __be32 saddr, const __be32 daddr)
{
struct dccp_hdr *dh = dccp_hdr(skb);
int checksum_len;
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 80c4d048869..ad5a1c66362 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -264,7 +264,7 @@ failure:
}
static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
- int type, int code, int offset, __u32 info)
+ int type, int code, int offset, __be32 info)
{
struct ipv6hdr *hdr = (struct ipv6hdr *)skb->data;
const struct dccp_hdr *dh = (struct dccp_hdr *)(skb->data + offset);
@@ -678,7 +678,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
struct dccp_request_sock *dreq;
struct inet6_request_sock *ireq6;
struct ipv6_pinfo *np = inet6_sk(sk);
- const __u32 service = dccp_hdr_request(skb)->dccph_req_service;
+ const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 7f99306c8e9..7d73b33a604 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -155,7 +155,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
if (len != 4)
goto out_invalid_option;
- opt_recv->dccpor_timestamp = ntohl(*(u32 *)value);
+ opt_recv->dccpor_timestamp = ntohl(*(__be32 *)value);
dp->dccps_timestamp_echo = opt_recv->dccpor_timestamp;
dccp_timestamp(sk, &dp->dccps_timestamp_time);
@@ -169,7 +169,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
if (len != 4 && len != 6 && len != 8)
goto out_invalid_option;
- opt_recv->dccpor_timestamp_echo = ntohl(*(u32 *)value);
+ opt_recv->dccpor_timestamp_echo = ntohl(*(__be32 *)value);
dccp_pr_debug("%sTIMESTAMP_ECHO=%u, len=%d, ackno=%llu, ",
debug_prefix,
@@ -183,9 +183,9 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
break;
if (len == 6)
- elapsed_time = ntohs(*(u16 *)(value + 4));
+ elapsed_time = ntohs(*(__be16 *)(value + 4));
else
- elapsed_time = ntohl(*(u32 *)(value + 4));
+ elapsed_time = ntohl(*(__be32 *)(value + 4));
/* Give precedence to the biggest ELAPSED_TIME */
if (elapsed_time > opt_recv->dccpor_elapsed_time)
@@ -199,9 +199,9 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
continue;
if (len == 2)
- elapsed_time = ntohs(*(u16 *)value);
+ elapsed_time = ntohs(*(__be16 *)value);
else
- elapsed_time = ntohl(*(u32 *)value);
+ elapsed_time = ntohl(*(__be32 *)value);
if (elapsed_time > opt_recv->dccpor_elapsed_time)
opt_recv->dccpor_elapsed_time = elapsed_time;
@@ -358,10 +358,10 @@ void dccp_insert_option_elapsed_time(struct sock *sk,
*to++ = len;
if (elapsed_time_len == 2) {
- const u16 var16 = htons((u16)elapsed_time);
+ const __be16 var16 = htons((u16)elapsed_time);
memcpy(to, &var16, 2);
} else {
- const u32 var32 = htonl(elapsed_time);
+ const __be32 var32 = htonl(elapsed_time);
memcpy(to, &var32, 4);
}
@@ -392,14 +392,13 @@ EXPORT_SYMBOL_GPL(dccp_timestamp);
void dccp_insert_option_timestamp(struct sock *sk, struct sk_buff *skb)
{
struct timeval tv;
- u32 now;
+ __be32 now;
dccp_timestamp(sk, &tv);
- now = timeval_usecs(&tv) / 10;
+ now = htonl(timeval_usecs(&tv) / 10);
/* yes this will overflow but that is the point as we want a
* 10 usec 32 bit timer which mean it wraps every 11.9 hours */
- now = htonl(now);
dccp_insert_option(sk, skb, DCCPO_TIMESTAMP, &now, sizeof(now));
}
@@ -414,7 +413,7 @@ static void dccp_insert_option_timestamp_echo(struct sock *sk,
"CLIENT TX opt: " : "server TX opt: ";
#endif
struct timeval now;
- u32 tstamp_echo;
+ __be32 tstamp_echo;
u32 elapsed_time;
int len, elapsed_time_len;
unsigned char *to;
@@ -441,10 +440,10 @@ static void dccp_insert_option_timestamp_echo(struct sock *sk,
to += 4;
if (elapsed_time_len == 2) {
- const u16 var16 = htons((u16)elapsed_time);
+ const __be16 var16 = htons((u16)elapsed_time);
memcpy(to, &var16, 2);
} else if (elapsed_time_len == 4) {
- const u32 var32 = htonl(elapsed_time);
+ const __be32 var32 = htonl(elapsed_time);
memcpy(to, &var32, 4);
}
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 1a8cf8ecfe6..53735ee2bbd 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -221,7 +221,7 @@ int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg)
EXPORT_SYMBOL_GPL(dccp_ioctl);
-static int dccp_setsockopt_service(struct sock *sk, const u32 service,
+static int dccp_setsockopt_service(struct sock *sk, const __be32 service,
char __user *optval, int optlen)
{
struct dccp_sock *dp = dccp_sk(sk);
@@ -349,7 +349,7 @@ int dccp_setsockopt(struct sock *sk, int level, int optname,
EXPORT_SYMBOL_GPL(dccp_setsockopt);
static int dccp_getsockopt_service(struct sock *sk, int len,
- u32 __user *optval,
+ __be32 __user *optval,
int __user *optlen)
{
const struct dccp_sock *dp = dccp_sk(sk);
@@ -404,7 +404,7 @@ int dccp_getsockopt(struct sock *sk, int level, int optname,
break;
case DCCP_SOCKOPT_SERVICE:
return dccp_getsockopt_service(sk, len,
- (u32 __user *)optval, optlen);
+ (__be32 __user *)optval, optlen);
case 128 ... 191:
return ccid_hc_rx_getsockopt(dp->dccps_hc_rx_ccid, sk, optname,
len, (u32 __user *)optval, optlen);