static int tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 portid, u32 seq, u16 flags, int event, int bind, int ref) { struct tcamsg *t; struct nlmsghdr *nlh; unsigned char *b = skb_tail_pointer(skb); struct nlattr *nest; nlh = nlmsg_put(skb, portid, seq, event, sizeof(*t), flags); if (!nlh) goto out_nlmsg_trim; t = nlmsg_data(nlh); t->tca_family = AF_UNSPEC; t->tca__pad1 = 0; t->tca__pad2 = 0; nest = nla_nest_start(skb, TCA_ACT_TAB); if (nest == NULL) goto out_nlmsg_trim; if (tcf_action_dump(skb, a, bind, ref) < 0) goto out_nlmsg_trim; nla_nest_end(skb, nest); nlh->nlmsg_len = skb_tail_pointer(skb) - b; return skb->len; out_nlmsg_trim: nlmsg_trim(skb, b); return -1; }
static int tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq, u16 flags, int event, int bind, int ref) { struct tcamsg *t; struct nlmsghdr *nlh; unsigned char *b = skb->tail; struct rtattr *x; nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags); t = NLMSG_DATA(nlh); t->tca_family = AF_UNSPEC; t->tca__pad1 = 0; t->tca__pad2 = 0; x = (struct rtattr*) skb->tail; RTA_PUT(skb, TCA_ACT_TAB, 0, NULL); if (tcf_action_dump(skb, a, bind, ref) < 0) goto rtattr_failure; x->rta_len = skb->tail - (u8*)x; nlh->nlmsg_len = skb->tail - b; return skb->len; rtattr_failure: nlmsg_failure: skb_trim(skb, b - skb->data); return -1; }
static int tcf_add_notify(struct net *net, struct tc_action *a, u32 portid, u32 seq, int event, u16 flags) { struct tcamsg *t; struct nlmsghdr *nlh; struct sk_buff *skb; struct nlattr *nest; unsigned char *b; int err = 0; skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); if (!skb) return -ENOBUFS; b = skb_tail_pointer(skb); nlh = nlmsg_put(skb, portid, seq, event, sizeof(*t), flags); if (!nlh) goto out_kfree_skb; t = nlmsg_data(nlh); t->tca_family = AF_UNSPEC; t->tca__pad1 = 0; t->tca__pad2 = 0; nest = nla_nest_start(skb, TCA_ACT_TAB); if (nest == NULL) goto out_kfree_skb; if (tcf_action_dump(skb, a, 0, 0) < 0) goto out_kfree_skb; nla_nest_end(skb, nest); nlh->nlmsg_len = skb_tail_pointer(skb) - b; NETLINK_CB(skb).dst_group = RTNLGRP_TC; err = rtnetlink_send(skb, net, portid, RTNLGRP_TC, flags & NLM_F_ECHO); if (err > 0) err = 0; return err; out_kfree_skb: kfree_skb(skb); return -1; }
static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, u16 flags) { struct tcamsg *t; struct nlmsghdr *nlh; struct sk_buff *skb; struct rtattr *x; unsigned char *b; int err = 0; skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); if (!skb) return -ENOBUFS; b = (unsigned char *)skb->tail; nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags); t = NLMSG_DATA(nlh); t->tca_family = AF_UNSPEC; t->tca__pad1 = 0; t->tca__pad2 = 0; x = (struct rtattr*) skb->tail; RTA_PUT(skb, TCA_ACT_TAB, 0, NULL); if (tcf_action_dump(skb, a, 0, 0) < 0) goto rtattr_failure; x->rta_len = skb->tail - (u8*)x; nlh->nlmsg_len = skb->tail - b; NETLINK_CB(skb).dst_group = RTNLGRP_TC; err = rtnetlink_send(skb, pid, RTNLGRP_TC, flags&NLM_F_ECHO); if (err > 0) err = 0; return err; rtattr_failure: nlmsg_failure: kfree_skb(skb); return -1; }