diff options
author | Andrea Bittau <a.bittau@cs.ucl.ac.uk> | 2006-03-21 03:23:32 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2006-03-21 03:23:32 (GMT) |
commit | 60fe62e789076ae7c13f7ffb35fec4b24802530d (patch) | |
tree | cc8d507a4276c3d5a2bcb72746660d485bc2e045 /net/dccp | |
parent | a193a4abdd1f742a57f3f70b6a83c3e536876e97 (diff) | |
download | linux-60fe62e789076ae7c13f7ffb35fec4b24802530d.tar.xz |
[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/dccp')
-rw-r--r-- | net/dccp/ccids/ccid3.c | 6 | ||||
-rw-r--r-- | net/dccp/dccp.h | 23 | ||||
-rw-r--r-- | net/dccp/ipv4.c | 12 | ||||
-rw-r--r-- | net/dccp/ipv6.c | 4 | ||||
-rw-r--r-- | net/dccp/options.c | 27 | ||||
-rw-r--r-- | net/dccp/proto.c | 6 |
6 files changed, 33 insertions, 45 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 0587f52..8620163 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 93f26dd..1764adb 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 aa7708f..be5ce57 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 80c4d04..ad5a1c6 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 7f99306..7d73b33 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 1a8cf8e..53735ee 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); |