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Diffstat (limited to 'net/ipv4/igmp.c')
-rw-r--r--net/ipv4/igmp.c60
1 files changed, 31 insertions, 29 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 1c6a084b5fb..f4dd4745310 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -314,7 +314,9 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.iph = pip =(struct iphdr *)skb_put(skb, sizeof(struct iphdr)+4);
+ skb_reset_network_header(skb);
+ pip = ip_hdr(skb);
+ skb_put(skb, sizeof(struct iphdr) + 4);
pip->version = 4;
pip->ihl = (sizeof(struct iphdr)+4)>>2;
@@ -331,8 +333,9 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
((u8*)&pip[1])[2] = 0;
((u8*)&pip[1])[3] = 0;
- pig =(struct igmpv3_report *)skb_put(skb, sizeof(*pig));
- skb->h.igmph = (struct igmphdr *)pig;
+ skb->transport_header = skb->network_header + sizeof(struct iphdr) + 4;
+ skb_put(skb, sizeof(*pig));
+ pig = igmpv3_report_hdr(skb);
pig->type = IGMPV3_HOST_MEMBERSHIP_REPORT;
pig->resv1 = 0;
pig->csum = 0;
@@ -343,16 +346,14 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
static int igmpv3_sendpack(struct sk_buff *skb)
{
- struct iphdr *pip = skb->nh.iph;
- struct igmphdr *pig = skb->h.igmph;
- int iplen, igmplen;
+ struct iphdr *pip = ip_hdr(skb);
+ struct igmphdr *pig = igmp_hdr(skb);
+ const int iplen = skb->tail - skb->network_header;
+ const int igmplen = skb->tail - skb->transport_header;
- iplen = skb->tail - (unsigned char *)skb->nh.iph;
pip->tot_len = htons(iplen);
ip_send_check(pip);
-
- igmplen = skb->tail - (unsigned char *)skb->h.igmph;
- pig->csum = ip_compute_csum((void *)skb->h.igmph, igmplen);
+ pig->csum = ip_compute_csum(igmp_hdr(skb), igmplen);
return NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
@@ -379,7 +380,7 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ip_mc_list *pmc,
pgr->grec_auxwords = 0;
pgr->grec_nsrcs = 0;
pgr->grec_mca = pmc->multiaddr;
- pih = (struct igmpv3_report *)skb->h.igmph;
+ pih = igmpv3_report_hdr(skb);
pih->ngrec = htons(ntohs(pih->ngrec)+1);
*ppgr = pgr;
return skb;
@@ -412,7 +413,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc,
if (!*psf_list)
goto empty_source;
- pih = skb ? (struct igmpv3_report *)skb->h.igmph : NULL;
+ pih = skb ? igmpv3_report_hdr(skb) : NULL;
/* EX and TO_EX get a fresh packet, if needed */
if (truncate) {
@@ -664,7 +665,9 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.iph = iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr)+4);
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
+ skb_put(skb, sizeof(struct iphdr) + 4);
iph->version = 4;
iph->ihl = (sizeof(struct iphdr)+4)>>2;
@@ -827,8 +830,8 @@ static void igmp_heard_report(struct in_device *in_dev, __be32 group)
static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
int len)
{
- struct igmphdr *ih = skb->h.igmph;
- struct igmpv3_query *ih3 = (struct igmpv3_query *)ih;
+ struct igmphdr *ih = igmp_hdr(skb);
+ struct igmpv3_query *ih3 = igmpv3_query_hdr(skb);
struct ip_mc_list *im;
__be32 group = ih->group;
int max_delay;
@@ -861,12 +864,12 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
return;
- ih3 = (struct igmpv3_query *) skb->h.raw;
+ ih3 = igmpv3_query_hdr(skb);
if (ih3->nsrcs) {
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)
+ ntohs(ih3->nsrcs)*sizeof(__be32)))
return;
- ih3 = (struct igmpv3_query *) skb->h.raw;
+ ih3 = igmpv3_query_hdr(skb);
}
max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
@@ -943,7 +946,7 @@ int igmp_rcv(struct sk_buff *skb)
goto drop;
}
- ih = skb->h.igmph;
+ ih = igmp_hdr(skb);
switch (ih->type) {
case IGMP_HOST_MEMBERSHIP_QUERY:
igmp_heard_query(in_dev, skb, len);
@@ -1255,9 +1258,9 @@ out:
*/
void ip_mc_rejoin_group(struct ip_mc_list *im)
{
+#ifdef CONFIG_IP_MULTICAST
struct in_device *in_dev = im->interface;
-#ifdef CONFIG_IP_MULTICAST
if (im->multiaddr == IGMP_ALL_HOSTS)
return;
@@ -2285,9 +2288,8 @@ static inline struct ip_mc_list *igmp_mc_get_first(struct seq_file *seq)
struct ip_mc_list *im = NULL;
struct igmp_mc_iter_state *state = igmp_mc_seq_private(seq);
- for (state->dev = dev_base, state->in_dev = NULL;
- state->dev;
- state->dev = state->dev->next) {
+ state->in_dev = NULL;
+ for_each_netdev(state->dev) {
struct in_device *in_dev;
in_dev = in_dev_get(state->dev);
if (!in_dev)
@@ -2313,7 +2315,7 @@ static struct ip_mc_list *igmp_mc_get_next(struct seq_file *seq, struct ip_mc_li
read_unlock(&state->in_dev->mc_list_lock);
in_dev_put(state->in_dev);
}
- state->dev = state->dev->next;
+ state->dev = next_net_device(state->dev);
if (!state->dev) {
state->in_dev = NULL;
break;
@@ -2397,7 +2399,7 @@ static int igmp_mc_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static struct seq_operations igmp_mc_seq_ops = {
+static const struct seq_operations igmp_mc_seq_ops = {
.start = igmp_mc_seq_start,
.next = igmp_mc_seq_next,
.stop = igmp_mc_seq_stop,
@@ -2447,9 +2449,9 @@ static inline struct ip_sf_list *igmp_mcf_get_first(struct seq_file *seq)
struct ip_mc_list *im = NULL;
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
- for (state->dev = dev_base, state->idev = NULL, state->im = NULL;
- state->dev;
- state->dev = state->dev->next) {
+ state->idev = NULL;
+ state->im = NULL;
+ for_each_netdev(state->dev) {
struct in_device *idev;
idev = in_dev_get(state->dev);
if (unlikely(idev == NULL))
@@ -2485,7 +2487,7 @@ static struct ip_sf_list *igmp_mcf_get_next(struct seq_file *seq, struct ip_sf_l
read_unlock(&state->idev->mc_list_lock);
in_dev_put(state->idev);
}
- state->dev = state->dev->next;
+ state->dev = next_net_device(state->dev);
if (!state->dev) {
state->idev = NULL;
goto out;
@@ -2571,7 +2573,7 @@ static int igmp_mcf_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static struct seq_operations igmp_mcf_seq_ops = {
+static const struct seq_operations igmp_mcf_seq_ops = {
.start = igmp_mcf_seq_start,
.next = igmp_mcf_seq_next,
.stop = igmp_mcf_seq_stop,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-02 02:14:16 +0000