decnet: Parse netlink attributes on our own
decnet is the only subsystem left that is relying on the global netlink attribute buffer rta_buf. It's horrible design and we want to get rid of it. This converts all of decnet to do implicit attribute parsing. It also gets rid of the error prone struct dn_kern_rta. Yes, the fib_magic() stuff is not pretty. It's compiled tested but I need someone with appropriate hardware to test the patch since I don't have access to it. Cc: linux-decnet-user@lists.sourceforge.net Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf
David S. Miller
parent
9b924dbd5e
commit
58d7d8f9b2
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@ -1,24 +1,9 @@
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#ifndef _NET_DN_FIB_H
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#define _NET_DN_FIB_H
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/* WARNING: The ordering of these elements must match ordering
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* of RTA_* rtnetlink attribute numbers.
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*/
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struct dn_kern_rta {
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void *rta_dst;
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void *rta_src;
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int *rta_iif;
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int *rta_oif;
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void *rta_gw;
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u32 *rta_priority;
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void *rta_prefsrc;
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struct rtattr *rta_mx;
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struct rtattr *rta_mp;
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unsigned char *rta_protoinfo;
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u32 *rta_flow;
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struct rta_cacheinfo *rta_ci;
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struct rta_session *rta_sess;
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};
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#include <linux/netlink.h>
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extern const struct nla_policy rtm_dn_policy[];
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struct dn_fib_res {
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struct fib_rule *r;
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@ -93,10 +78,10 @@ struct dn_fib_table {
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u32 n;
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int (*insert)(struct dn_fib_table *t, struct rtmsg *r,
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struct dn_kern_rta *rta, struct nlmsghdr *n,
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struct nlattr *attrs[], struct nlmsghdr *n,
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struct netlink_skb_parms *req);
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int (*delete)(struct dn_fib_table *t, struct rtmsg *r,
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struct dn_kern_rta *rta, struct nlmsghdr *n,
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struct nlattr *attrs[], struct nlmsghdr *n,
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struct netlink_skb_parms *req);
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int (*lookup)(struct dn_fib_table *t, const struct flowidn *fld,
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struct dn_fib_res *res);
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@ -116,13 +101,12 @@ extern void dn_fib_cleanup(void);
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extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd,
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unsigned long arg);
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extern struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r,
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struct dn_kern_rta *rta,
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struct nlattr *attrs[],
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const struct nlmsghdr *nlh, int *errp);
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extern int dn_fib_semantic_match(int type, struct dn_fib_info *fi,
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const struct flowidn *fld,
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struct dn_fib_res *res);
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extern void dn_fib_release_info(struct dn_fib_info *fi);
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extern __le16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type);
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extern void dn_fib_flush(void);
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extern void dn_fib_select_multipath(const struct flowidn *fld,
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struct dn_fib_res *res);
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@ -145,22 +145,10 @@ static inline struct dn_fib_info *dn_fib_find_info(const struct dn_fib_info *nfi
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return NULL;
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}
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__le16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type)
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static int dn_fib_count_nhs(const struct nlattr *attr)
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{
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while(RTA_OK(attr,attrlen)) {
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if (attr->rta_type == type)
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return *(__le16*)RTA_DATA(attr);
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attr = RTA_NEXT(attr, attrlen);
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}
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return 0;
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}
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static int dn_fib_count_nhs(struct rtattr *rta)
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{
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int nhs = 0;
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struct rtnexthop *nhp = RTA_DATA(rta);
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int nhlen = RTA_PAYLOAD(rta);
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struct rtnexthop *nhp = nla_data(attr);
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int nhs = 0, nhlen = nla_len(attr);
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while(nhlen >= (int)sizeof(struct rtnexthop)) {
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if ((nhlen -= nhp->rtnh_len) < 0)
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@ -172,10 +160,11 @@ static int dn_fib_count_nhs(struct rtattr *rta)
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return nhs;
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}
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static int dn_fib_get_nhs(struct dn_fib_info *fi, const struct rtattr *rta, const struct rtmsg *r)
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static int dn_fib_get_nhs(struct dn_fib_info *fi, const struct nlattr *attr,
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const struct rtmsg *r)
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{
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struct rtnexthop *nhp = RTA_DATA(rta);
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int nhlen = RTA_PAYLOAD(rta);
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struct rtnexthop *nhp = nla_data(attr);
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int nhlen = nla_len(attr);
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change_nexthops(fi) {
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int attrlen = nhlen - sizeof(struct rtnexthop);
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@ -187,7 +176,10 @@ static int dn_fib_get_nhs(struct dn_fib_info *fi, const struct rtattr *rta, cons
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nh->nh_weight = nhp->rtnh_hops + 1;
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if (attrlen) {
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nh->nh_gw = dn_fib_get_attr16(RTNH_DATA(nhp), attrlen, RTA_GATEWAY);
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struct nlattr *gw_attr;
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gw_attr = nla_find((struct nlattr *) (nhp + 1), attrlen, RTA_GATEWAY);
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nh->nh_gw = gw_attr ? nla_get_le16(gw_attr) : 0;
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}
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nhp = RTNH_NEXT(nhp);
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} endfor_nexthops(fi);
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@ -268,7 +260,8 @@ static int dn_fib_check_nh(const struct rtmsg *r, struct dn_fib_info *fi, struct
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}
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struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta *rta, const struct nlmsghdr *nlh, int *errp)
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struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct nlattr *attrs[],
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const struct nlmsghdr *nlh, int *errp)
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{
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int err;
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struct dn_fib_info *fi = NULL;
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@ -281,11 +274,9 @@ struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta
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if (dn_fib_props[r->rtm_type].scope > r->rtm_scope)
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goto err_inval;
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if (rta->rta_mp) {
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nhs = dn_fib_count_nhs(rta->rta_mp);
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if (nhs == 0)
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goto err_inval;
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}
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if (attrs[RTA_MULTIPATH] &&
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(nhs = dn_fib_count_nhs(attrs[RTA_MULTIPATH])) == 0)
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goto err_inval;
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fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct dn_fib_nh), GFP_KERNEL);
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err = -ENOBUFS;
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@ -295,53 +286,65 @@ struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta
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fi->fib_protocol = r->rtm_protocol;
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fi->fib_nhs = nhs;
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fi->fib_flags = r->rtm_flags;
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if (rta->rta_priority)
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fi->fib_priority = *rta->rta_priority;
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if (rta->rta_mx) {
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int attrlen = RTA_PAYLOAD(rta->rta_mx);
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struct rtattr *attr = RTA_DATA(rta->rta_mx);
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while(RTA_OK(attr, attrlen)) {
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unsigned int flavour = attr->rta_type;
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if (attrs[RTA_PRIORITY])
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fi->fib_priority = nla_get_u32(attrs[RTA_PRIORITY]);
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if (flavour) {
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if (flavour > RTAX_MAX)
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if (attrs[RTA_METRICS]) {
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struct nlattr *attr;
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int rem;
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nla_for_each_nested(attr, attrs[RTA_METRICS], rem) {
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int type = nla_type(attr);
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if (type) {
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if (type > RTAX_MAX || nla_len(attr) < 4)
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goto err_inval;
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fi->fib_metrics[flavour-1] = *(unsigned int *)RTA_DATA(attr);
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fi->fib_metrics[type-1] = nla_get_u32(attr);
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}
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attr = RTA_NEXT(attr, attrlen);
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}
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}
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if (rta->rta_prefsrc)
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memcpy(&fi->fib_prefsrc, rta->rta_prefsrc, 2);
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if (rta->rta_mp) {
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if ((err = dn_fib_get_nhs(fi, rta->rta_mp, r)) != 0)
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if (attrs[RTA_PREFSRC])
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fi->fib_prefsrc = nla_get_le16(attrs[RTA_PREFSRC]);
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if (attrs[RTA_MULTIPATH]) {
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if ((err = dn_fib_get_nhs(fi, attrs[RTA_MULTIPATH], r)) != 0)
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goto failure;
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if (rta->rta_oif && fi->fib_nh->nh_oif != *rta->rta_oif)
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if (attrs[RTA_OIF] &&
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fi->fib_nh->nh_oif != nla_get_u32(attrs[RTA_OIF]))
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goto err_inval;
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if (rta->rta_gw && memcmp(&fi->fib_nh->nh_gw, rta->rta_gw, 2))
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if (attrs[RTA_GATEWAY] &&
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fi->fib_nh->nh_gw != nla_get_le16(attrs[RTA_GATEWAY]))
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goto err_inval;
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} else {
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struct dn_fib_nh *nh = fi->fib_nh;
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if (rta->rta_oif)
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nh->nh_oif = *rta->rta_oif;
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if (rta->rta_gw)
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memcpy(&nh->nh_gw, rta->rta_gw, 2);
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if (attrs[RTA_OIF])
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nh->nh_oif = nla_get_u32(attrs[RTA_OIF]);
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if (attrs[RTA_GATEWAY])
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nh->nh_gw = nla_get_le16(attrs[RTA_GATEWAY]);
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nh->nh_flags = r->rtm_flags;
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nh->nh_weight = 1;
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}
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if (r->rtm_type == RTN_NAT) {
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if (rta->rta_gw == NULL || nhs != 1 || rta->rta_oif)
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if (!attrs[RTA_GATEWAY] || nhs != 1 || attrs[RTA_OIF])
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goto err_inval;
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memcpy(&fi->fib_nh->nh_gw, rta->rta_gw, 2);
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fi->fib_nh->nh_gw = nla_get_le16(attrs[RTA_GATEWAY]);
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goto link_it;
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}
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if (dn_fib_props[r->rtm_type].error) {
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if (rta->rta_gw || rta->rta_oif || rta->rta_mp)
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if (attrs[RTA_GATEWAY] || attrs[RTA_OIF] || attrs[RTA_MULTIPATH])
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goto err_inval;
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goto link_it;
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}
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@ -367,8 +370,8 @@ struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta
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}
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if (fi->fib_prefsrc) {
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if (r->rtm_type != RTN_LOCAL || rta->rta_dst == NULL ||
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memcmp(&fi->fib_prefsrc, rta->rta_dst, 2))
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if (r->rtm_type != RTN_LOCAL || !attrs[RTA_DST] ||
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fi->fib_prefsrc != nla_get_le16(attrs[RTA_DST]))
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if (dnet_addr_type(fi->fib_prefsrc) != RTN_LOCAL)
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goto err_inval;
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}
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@ -486,29 +489,24 @@ void dn_fib_select_multipath(const struct flowidn *fld, struct dn_fib_res *res)
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spin_unlock_bh(&dn_fib_multipath_lock);
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}
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const struct nla_policy rtm_dn_policy[RTA_MAX + 1] = {
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[RTA_DST] = { .type = NLA_U16 },
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[RTA_SRC] = { .type = NLA_U16 },
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[RTA_IIF] = { .type = NLA_U32 },
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[RTA_OIF] = { .type = NLA_U32 },
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[RTA_GATEWAY] = { .type = NLA_U16 },
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[RTA_PRIORITY] = { .type = NLA_U32 },
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[RTA_PREFSRC] = { .type = NLA_U16 },
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[RTA_METRICS] = { .type = NLA_NESTED },
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[RTA_MULTIPATH] = { .type = NLA_NESTED },
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[RTA_TABLE] = { .type = NLA_U32 },
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[RTA_MARK] = { .type = NLA_U32 },
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};
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static int dn_fib_check_attr(struct rtmsg *r, struct rtattr **rta)
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static inline u32 rtm_get_table(struct nlattr *attrs[], u8 table)
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{
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int i;
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for(i = 1; i <= RTA_MAX; i++) {
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struct rtattr *attr = rta[i-1];
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if (attr) {
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if (RTA_PAYLOAD(attr) < 4 && RTA_PAYLOAD(attr) != 2)
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return -EINVAL;
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if (i != RTA_MULTIPATH && i != RTA_METRICS &&
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i != RTA_TABLE)
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rta[i-1] = (struct rtattr *)RTA_DATA(attr);
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}
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}
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return 0;
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}
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static inline u32 rtm_get_table(struct rtattr **rta, u8 table)
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{
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if (rta[RTA_TABLE - 1])
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table = nla_get_u32((struct nlattr *) rta[RTA_TABLE - 1]);
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if (attrs[RTA_TABLE])
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table = nla_get_u32(attrs[RTA_TABLE]);
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return table;
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}
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@ -517,8 +515,9 @@ static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *
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{
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struct net *net = sock_net(skb->sk);
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struct dn_fib_table *tb;
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struct rtattr **rta = arg;
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struct rtmsg *r = NLMSG_DATA(nlh);
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struct rtmsg *r = nlmsg_data(nlh);
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struct nlattr *attrs[RTA_MAX+1];
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int err;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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@ -526,22 +525,24 @@ static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *
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if (!net_eq(net, &init_net))
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return -EINVAL;
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if (dn_fib_check_attr(r, rta))
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return -EINVAL;
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err = nlmsg_parse(nlh, sizeof(*r), attrs, RTA_MAX, rtm_dn_policy);
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if (err < 0)
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return err;
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tb = dn_fib_get_table(rtm_get_table(rta, r->rtm_table), 0);
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if (tb)
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return tb->delete(tb, r, (struct dn_kern_rta *)rta, nlh, &NETLINK_CB(skb));
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tb = dn_fib_get_table(rtm_get_table(attrs, r->rtm_table), 0);
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if (!tb)
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return -ESRCH;
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return -ESRCH;
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return tb->delete(tb, r, attrs, nlh, &NETLINK_CB(skb));
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}
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static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
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{
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struct net *net = sock_net(skb->sk);
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struct dn_fib_table *tb;
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struct rtattr **rta = arg;
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struct rtmsg *r = NLMSG_DATA(nlh);
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struct rtmsg *r = nlmsg_data(nlh);
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struct nlattr *attrs[RTA_MAX+1];
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int err;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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@ -549,14 +550,15 @@ static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *
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if (!net_eq(net, &init_net))
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return -EINVAL;
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if (dn_fib_check_attr(r, rta))
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return -EINVAL;
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err = nlmsg_parse(nlh, sizeof(*r), attrs, RTA_MAX, rtm_dn_policy);
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if (err < 0)
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return err;
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tb = dn_fib_get_table(rtm_get_table(rta, r->rtm_table), 1);
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if (tb)
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return tb->insert(tb, r, (struct dn_kern_rta *)rta, nlh, &NETLINK_CB(skb));
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tb = dn_fib_get_table(rtm_get_table(attrs, r->rtm_table), 1);
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if (!tb)
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return -ENOBUFS;
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return -ENOBUFS;
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return tb->insert(tb, r, attrs, nlh, &NETLINK_CB(skb));
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}
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static void fib_magic(int cmd, int type, __le16 dst, int dst_len, struct dn_ifaddr *ifa)
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@ -566,10 +568,31 @@ static void fib_magic(int cmd, int type, __le16 dst, int dst_len, struct dn_ifad
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struct nlmsghdr nlh;
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struct rtmsg rtm;
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} req;
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struct dn_kern_rta rta;
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struct {
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struct nlattr hdr;
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__le16 dst;
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} dst_attr = {
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.dst = dst,
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};
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struct {
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struct nlattr hdr;
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__le16 prefsrc;
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} prefsrc_attr = {
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.prefsrc = ifa->ifa_local,
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};
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struct {
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struct nlattr hdr;
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u32 oif;
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} oif_attr = {
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.oif = ifa->ifa_dev->dev->ifindex,
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};
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struct nlattr *attrs[RTA_MAX+1] = {
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[RTA_DST] = (struct nlattr *) &dst_attr,
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[RTA_PREFSRC] = (struct nlattr * ) &prefsrc_attr,
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[RTA_OIF] = (struct nlattr *) &oif_attr,
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};
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memset(&req.rtm, 0, sizeof(req.rtm));
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memset(&rta, 0, sizeof(rta));
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if (type == RTN_UNICAST)
|
||||
tb = dn_fib_get_table(RT_MIN_TABLE, 1);
|
||||
|
|
@ -591,14 +614,10 @@ static void fib_magic(int cmd, int type, __le16 dst, int dst_len, struct dn_ifad
|
|||
req.rtm.rtm_scope = (type != RTN_LOCAL ? RT_SCOPE_LINK : RT_SCOPE_HOST);
|
||||
req.rtm.rtm_type = type;
|
||||
|
||||
rta.rta_dst = &dst;
|
||||
rta.rta_prefsrc = &ifa->ifa_local;
|
||||
rta.rta_oif = &ifa->ifa_dev->dev->ifindex;
|
||||
|
||||
if (cmd == RTM_NEWROUTE)
|
||||
tb->insert(tb, &req.rtm, &rta, &req.nlh, NULL);
|
||||
tb->insert(tb, &req.rtm, attrs, &req.nlh, NULL);
|
||||
else
|
||||
tb->delete(tb, &req.rtm, &rta, &req.nlh, NULL);
|
||||
tb->delete(tb, &req.rtm, attrs, &req.nlh, NULL);
|
||||
}
|
||||
|
||||
static void dn_fib_add_ifaddr(struct dn_ifaddr *ifa)
|
||||
|
|
|
|||
|
|
@ -1619,17 +1619,21 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 portid, u32 seq,
|
|||
static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
|
||||
{
|
||||
struct net *net = sock_net(in_skb->sk);
|
||||
struct rtattr **rta = arg;
|
||||
struct rtmsg *rtm = nlmsg_data(nlh);
|
||||
struct dn_route *rt = NULL;
|
||||
struct dn_skb_cb *cb;
|
||||
int err;
|
||||
struct sk_buff *skb;
|
||||
struct flowidn fld;
|
||||
struct nlattr *tb[RTA_MAX+1];
|
||||
|
||||
if (!net_eq(net, &init_net))
|
||||
return -EINVAL;
|
||||
|
||||
err = nlmsg_parse(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_dn_policy);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
memset(&fld, 0, sizeof(fld));
|
||||
fld.flowidn_proto = DNPROTO_NSP;
|
||||
|
||||
|
|
@ -1639,12 +1643,14 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
|
|||
skb_reset_mac_header(skb);
|
||||
cb = DN_SKB_CB(skb);
|
||||
|
||||
if (rta[RTA_SRC-1])
|
||||
memcpy(&fld.saddr, RTA_DATA(rta[RTA_SRC-1]), 2);
|
||||
if (rta[RTA_DST-1])
|
||||
memcpy(&fld.daddr, RTA_DATA(rta[RTA_DST-1]), 2);
|
||||
if (rta[RTA_IIF-1])
|
||||
memcpy(&fld.flowidn_iif, RTA_DATA(rta[RTA_IIF-1]), sizeof(int));
|
||||
if (tb[RTA_SRC])
|
||||
fld.saddr = nla_get_le16(tb[RTA_SRC]);
|
||||
|
||||
if (tb[RTA_DST])
|
||||
fld.daddr = nla_get_le16(tb[RTA_DST]);
|
||||
|
||||
if (tb[RTA_IIF])
|
||||
fld.flowidn_iif = nla_get_u32(tb[RTA_IIF]);
|
||||
|
||||
if (fld.flowidn_iif) {
|
||||
struct net_device *dev;
|
||||
|
|
@ -1669,10 +1675,9 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
|
|||
if (!err && -rt->dst.error)
|
||||
err = rt->dst.error;
|
||||
} else {
|
||||
int oif = 0;
|
||||
if (rta[RTA_OIF - 1])
|
||||
memcpy(&oif, RTA_DATA(rta[RTA_OIF - 1]), sizeof(int));
|
||||
fld.flowidn_oif = oif;
|
||||
if (tb[RTA_OIF])
|
||||
fld.flowidn_oif = nla_get_u32(tb[RTA_OIF]);
|
||||
|
||||
err = dn_route_output_key((struct dst_entry **)&rt, &fld, 0);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -224,26 +224,27 @@ static struct dn_zone *dn_new_zone(struct dn_hash *table, int z)
|
|||
}
|
||||
|
||||
|
||||
static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct dn_kern_rta *rta, struct dn_fib_info *fi)
|
||||
static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct nlattr *attrs[], struct dn_fib_info *fi)
|
||||
{
|
||||
struct rtnexthop *nhp;
|
||||
int nhlen;
|
||||
|
||||
if (rta->rta_priority && *rta->rta_priority != fi->fib_priority)
|
||||
if (attrs[RTA_PRIORITY] &&
|
||||
nla_get_u32(attrs[RTA_PRIORITY]) != fi->fib_priority)
|
||||
return 1;
|
||||
|
||||
if (rta->rta_oif || rta->rta_gw) {
|
||||
if ((!rta->rta_oif || *rta->rta_oif == fi->fib_nh->nh_oif) &&
|
||||
(!rta->rta_gw || memcmp(rta->rta_gw, &fi->fib_nh->nh_gw, 2) == 0))
|
||||
if (attrs[RTA_OIF] || attrs[RTA_GATEWAY]) {
|
||||
if ((!attrs[RTA_OIF] || nla_get_u32(attrs[RTA_OIF]) == fi->fib_nh->nh_oif) &&
|
||||
(!attrs[RTA_GATEWAY] || nla_get_le16(attrs[RTA_GATEWAY]) != fi->fib_nh->nh_gw))
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (rta->rta_mp == NULL)
|
||||
if (!attrs[RTA_MULTIPATH])
|
||||
return 0;
|
||||
|
||||
nhp = RTA_DATA(rta->rta_mp);
|
||||
nhlen = RTA_PAYLOAD(rta->rta_mp);
|
||||
nhp = nla_data(attrs[RTA_MULTIPATH]);
|
||||
nhlen = nla_len(attrs[RTA_MULTIPATH]);
|
||||
|
||||
for_nexthops(fi) {
|
||||
int attrlen = nhlen - sizeof(struct rtnexthop);
|
||||
|
|
@ -254,7 +255,10 @@ static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct dn_kern
|
|||
if (nhp->rtnh_ifindex && nhp->rtnh_ifindex != nh->nh_oif)
|
||||
return 1;
|
||||
if (attrlen) {
|
||||
gw = dn_fib_get_attr16(RTNH_DATA(nhp), attrlen, RTA_GATEWAY);
|
||||
struct nlattr *gw_attr;
|
||||
|
||||
gw_attr = nla_find((struct nlattr *) (nhp + 1), attrlen, RTA_GATEWAY);
|
||||
gw = gw_attr ? nla_get_le16(gw_attr) : 0;
|
||||
|
||||
if (gw && gw != nh->nh_gw)
|
||||
return 1;
|
||||
|
|
@ -517,7 +521,8 @@ int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb)
|
|||
return skb->len;
|
||||
}
|
||||
|
||||
static int dn_fib_table_insert(struct dn_fib_table *tb, struct rtmsg *r, struct dn_kern_rta *rta, struct nlmsghdr *n, struct netlink_skb_parms *req)
|
||||
static int dn_fib_table_insert(struct dn_fib_table *tb, struct rtmsg *r, struct nlattr *attrs[],
|
||||
struct nlmsghdr *n, struct netlink_skb_parms *req)
|
||||
{
|
||||
struct dn_hash *table = (struct dn_hash *)tb->data;
|
||||
struct dn_fib_node *new_f, *f, **fp, **del_fp;
|
||||
|
|
@ -536,15 +541,14 @@ static int dn_fib_table_insert(struct dn_fib_table *tb, struct rtmsg *r, struct
|
|||
return -ENOBUFS;
|
||||
|
||||
dz_key_0(key);
|
||||
if (rta->rta_dst) {
|
||||
__le16 dst;
|
||||
memcpy(&dst, rta->rta_dst, 2);
|
||||
if (attrs[RTA_DST]) {
|
||||
__le16 dst = nla_get_le16(attrs[RTA_DST]);
|
||||
if (dst & ~DZ_MASK(dz))
|
||||
return -EINVAL;
|
||||
key = dz_key(dst, dz);
|
||||
}
|
||||
|
||||
if ((fi = dn_fib_create_info(r, rta, n, &err)) == NULL)
|
||||
if ((fi = dn_fib_create_info(r, attrs, n, &err)) == NULL)
|
||||
return err;
|
||||
|
||||
if (dz->dz_nent > (dz->dz_divisor << 2) &&
|
||||
|
|
@ -654,7 +658,8 @@ static int dn_fib_table_insert(struct dn_fib_table *tb, struct rtmsg *r, struct
|
|||
}
|
||||
|
||||
|
||||
static int dn_fib_table_delete(struct dn_fib_table *tb, struct rtmsg *r, struct dn_kern_rta *rta, struct nlmsghdr *n, struct netlink_skb_parms *req)
|
||||
static int dn_fib_table_delete(struct dn_fib_table *tb, struct rtmsg *r, struct nlattr *attrs[],
|
||||
struct nlmsghdr *n, struct netlink_skb_parms *req)
|
||||
{
|
||||
struct dn_hash *table = (struct dn_hash*)tb->data;
|
||||
struct dn_fib_node **fp, **del_fp, *f;
|
||||
|
|
@ -671,9 +676,8 @@ static int dn_fib_table_delete(struct dn_fib_table *tb, struct rtmsg *r, struct
|
|||
return -ESRCH;
|
||||
|
||||
dz_key_0(key);
|
||||
if (rta->rta_dst) {
|
||||
__le16 dst;
|
||||
memcpy(&dst, rta->rta_dst, 2);
|
||||
if (attrs[RTA_DST]) {
|
||||
__le16 dst = nla_get_le16(attrs[RTA_DST]);
|
||||
if (dst & ~DZ_MASK(dz))
|
||||
return -EINVAL;
|
||||
key = dz_key(dst, dz);
|
||||
|
|
@ -703,7 +707,7 @@ static int dn_fib_table_delete(struct dn_fib_table *tb, struct rtmsg *r, struct
|
|||
(r->rtm_scope == RT_SCOPE_NOWHERE || f->fn_scope == r->rtm_scope) &&
|
||||
(!r->rtm_protocol ||
|
||||
fi->fib_protocol == r->rtm_protocol) &&
|
||||
dn_fib_nh_match(r, n, rta, fi) == 0)
|
||||
dn_fib_nh_match(r, n, attrs, fi) == 0)
|
||||
del_fp = fp;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user