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[IPV6]: Make ndisc_flow_init() common for later use.
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For later use, this patch is renaming ndisc_flow_init() to
icmpv6_flow_init() and putting it in common place.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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YOSHIFUJI Hideaki committed Mar 4, 2008
1 parent 5e5f3f0 commit 95e41e9
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Showing 3 changed files with 28 additions and 19 deletions.
8 changes: 8 additions & 0 deletions include/linux/icmpv6.h
Original file line number Diff line number Diff line change
Expand Up @@ -182,6 +182,14 @@ extern int icmpv6_err_convert(int type, int code,
extern void icmpv6_cleanup(void);
extern void icmpv6_param_prob(struct sk_buff *skb,
int code, int pos);

struct flowi;
extern void icmpv6_flow_init(struct sock *sk,
struct flowi *fl,
u8 type,
const struct in6_addr *saddr,
const struct in6_addr *daddr,
int oif);
#endif

#endif
16 changes: 16 additions & 0 deletions net/ipv6/icmp.c
Original file line number Diff line number Diff line change
Expand Up @@ -777,6 +777,22 @@ static int icmpv6_rcv(struct sk_buff *skb)
return 0;
}

void icmpv6_flow_init(struct sock *sk, struct flowi *fl,
u8 type,
const struct in6_addr *saddr,
const struct in6_addr *daddr,
int oif)
{
memset(fl, 0, sizeof(*fl));
ipv6_addr_copy(&fl->fl6_src, saddr);
ipv6_addr_copy(&fl->fl6_dst, daddr);
fl->proto = IPPROTO_ICMPV6;
fl->fl_icmp_type = type;
fl->fl_icmp_code = 0;
fl->oif = oif;
security_sk_classify_flow(sk, fl);
}

/*
* Special lock-class for __icmpv6_sk:
*/
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23 changes: 4 additions & 19 deletions net/ipv6/ndisc.c
Original file line number Diff line number Diff line change
Expand Up @@ -441,21 +441,6 @@ static void pndisc_destructor(struct pneigh_entry *n)
/*
* Send a Neighbour Advertisement
*/

static inline void ndisc_flow_init(struct flowi *fl, u8 type,
struct in6_addr *saddr, struct in6_addr *daddr,
int oif)
{
memset(fl, 0, sizeof(*fl));
ipv6_addr_copy(&fl->fl6_src, saddr);
ipv6_addr_copy(&fl->fl6_dst, daddr);
fl->proto = IPPROTO_ICMPV6;
fl->fl_icmp_type = type;
fl->fl_icmp_code = 0;
fl->oif = oif;
security_sk_classify_flow(ndisc_socket->sk, fl);
}

static void __ndisc_send(struct net_device *dev,
struct neighbour *neigh,
struct in6_addr *daddr, struct in6_addr *saddr,
Expand All @@ -474,8 +459,8 @@ static void __ndisc_send(struct net_device *dev,

type = icmp6h->icmp6_type;

ndisc_flow_init(&fl, type, saddr, daddr,
dev->ifindex);
icmpv6_flow_init(ndisc_socket->sk, &fl, type,
saddr, daddr, dev->ifindex);

dst = ndisc_dst_alloc(dev, neigh, daddr, ip6_output);
if (!dst)
Expand Down Expand Up @@ -1439,8 +1424,8 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
return;
}

ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &ipv6_hdr(skb)->saddr,
dev->ifindex);
icmpv6_flow_init(ndisc_socket->sk, &fl, NDISC_REDIRECT,
&saddr_buf, &ipv6_hdr(skb)->saddr, dev->ifindex);

dst = ip6_route_output(NULL, &fl);
if (dst == NULL)
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