X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fsched%2Fact_api.c;h=74e662cbb2c5b7a61a1c0815a358899c6abc694a;hb=31d5d275a118527a2b9b0f68613428f176efbb8f;hp=72cdb0fade205b3cc77df614de151eb5e6c114a6;hpb=b160292cc216a50fd0cd386b0bda2cd48352c73b;p=linux-2.6-omap-h63xx.git diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 72cdb0fade2..74e662cbb2c 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -18,6 +18,9 @@ #include #include #include +#include +#include +#include #include #include #include @@ -66,7 +69,7 @@ static int tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb, { struct tcf_common *p; int err = 0, index = -1,i = 0, s_i = 0, n_i = 0; - struct rtattr *r ; + struct nlattr *nest; read_lock_bh(hinfo->lock); @@ -81,15 +84,17 @@ static int tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb, continue; a->priv = p; a->order = n_i; - r = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, a->order, 0, NULL); + + nest = nla_nest_start(skb, a->order); + if (nest == NULL) + goto nla_put_failure; err = tcf_action_dump_1(skb, a, 0, 0); if (err < 0) { index--; - nlmsg_trim(skb, r); + nlmsg_trim(skb, nest); goto done; } - r->rta_len = skb_tail_pointer(skb) - (u8 *)r; + nla_nest_end(skb, nest); n_i++; if (n_i >= TCA_ACT_MAX_PRIO) goto done; @@ -101,8 +106,8 @@ done: cb->args[0] += n_i; return n_i; -rtattr_failure: - nlmsg_trim(skb, r); +nla_put_failure: + nla_nest_cancel(skb, nest); goto done; } @@ -110,12 +115,13 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, struct tcf_hashinfo *hinfo) { struct tcf_common *p, *s_p; - struct rtattr *r ; + struct nlattr *nest; int i= 0, n_i = 0; - r = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, a->order, 0, NULL); - RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind); + nest = nla_nest_start(skb, a->order); + if (nest == NULL) + goto nla_put_failure; + NLA_PUT_STRING(skb, TCA_KIND, a->ops->kind); for (i = 0; i < (hinfo->hmask + 1); i++) { p = hinfo->htab[tcf_hash(i, hinfo->hmask)]; @@ -127,12 +133,12 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, p = s_p; } } - RTA_PUT(skb, TCA_FCNT, 4, &n_i); - r->rta_len = skb_tail_pointer(skb) - (u8 *)r; + NLA_PUT_U32(skb, TCA_FCNT, n_i); + nla_nest_end(skb, nest); return n_i; -rtattr_failure: - nlmsg_trim(skb, r); +nla_put_failure: + nla_nest_cancel(skb, nest); return -EINVAL; } @@ -209,7 +215,7 @@ struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind, } EXPORT_SYMBOL(tcf_hash_check); -struct tcf_common *tcf_hash_create(u32 index, struct rtattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo) +struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo) { struct tcf_common *p = kzalloc(size, GFP_KERNEL); @@ -261,6 +267,7 @@ int tcf_register_action(struct tc_action_ops *act) write_unlock(&act_mod_lock); return 0; } +EXPORT_SYMBOL(tcf_register_action); int tcf_unregister_action(struct tc_action_ops *act) { @@ -279,6 +286,7 @@ int tcf_unregister_action(struct tc_action_ops *act) write_unlock(&act_mod_lock); return err; } +EXPORT_SYMBOL(tcf_unregister_action); /* lookup by name */ static struct tc_action_ops *tc_lookup_action_n(char *kind) @@ -301,15 +309,15 @@ static struct tc_action_ops *tc_lookup_action_n(char *kind) return a; } -/* lookup by rtattr */ -static struct tc_action_ops *tc_lookup_action(struct rtattr *kind) +/* lookup by nlattr */ +static struct tc_action_ops *tc_lookup_action(struct nlattr *kind) { struct tc_action_ops *a = NULL; if (kind) { read_lock(&act_mod_lock); for (a = act_base; a; a = a->next) { - if (rtattr_strcmp(kind, a->kind) == 0) { + if (nla_strcmp(kind, a->kind) == 0) { if (!try_module_get(a->owner)) { read_unlock(&act_mod_lock); return NULL; @@ -375,6 +383,7 @@ repeat: exec_done: return ret; } +EXPORT_SYMBOL(tcf_action_exec); void tcf_action_destroy(struct tc_action *act, int bind) { @@ -409,73 +418,77 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref) { int err = -EINVAL; unsigned char *b = skb_tail_pointer(skb); - struct rtattr *r; + struct nlattr *nest; if (a->ops == NULL || a->ops->dump == NULL) return err; - RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind); + NLA_PUT_STRING(skb, TCA_KIND, a->ops->kind); if (tcf_action_copy_stats(skb, a, 0)) - goto rtattr_failure; - r = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, TCA_OPTIONS, 0, NULL); + goto nla_put_failure; + nest = nla_nest_start(skb, TCA_OPTIONS); + if (nest == NULL) + goto nla_put_failure; if ((err = tcf_action_dump_old(skb, a, bind, ref)) > 0) { - r->rta_len = skb_tail_pointer(skb) - (u8 *)r; + nla_nest_end(skb, nest); return err; } -rtattr_failure: +nla_put_failure: nlmsg_trim(skb, b); return -1; } +EXPORT_SYMBOL(tcf_action_dump_1); int tcf_action_dump(struct sk_buff *skb, struct tc_action *act, int bind, int ref) { struct tc_action *a; int err = -EINVAL; - unsigned char *b = skb_tail_pointer(skb); - struct rtattr *r ; + struct nlattr *nest; while ((a = act) != NULL) { - r = (struct rtattr *)skb_tail_pointer(skb); act = a->next; - RTA_PUT(skb, a->order, 0, NULL); + nest = nla_nest_start(skb, a->order); + if (nest == NULL) + goto nla_put_failure; err = tcf_action_dump_1(skb, a, bind, ref); if (err < 0) goto errout; - r->rta_len = skb_tail_pointer(skb) - (u8 *)r; + nla_nest_end(skb, nest); } return 0; -rtattr_failure: +nla_put_failure: err = -EINVAL; errout: - nlmsg_trim(skb, b); + nla_nest_cancel(skb, nest); return err; } -struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, - char *name, int ovr, int bind, int *err) +struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, + char *name, int ovr, int bind) { struct tc_action *a; struct tc_action_ops *a_o; char act_name[IFNAMSIZ]; - struct rtattr *tb[TCA_ACT_MAX+1]; - struct rtattr *kind; - - *err = -EINVAL; + struct nlattr *tb[TCA_ACT_MAX+1]; + struct nlattr *kind; + int err; if (name == NULL) { - if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0) + err = nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL); + if (err < 0) goto err_out; - kind = tb[TCA_ACT_KIND-1]; + err = -EINVAL; + kind = tb[TCA_ACT_KIND]; if (kind == NULL) goto err_out; - if (rtattr_strlcpy(act_name, kind, IFNAMSIZ) >= IFNAMSIZ) + if (nla_strlcpy(act_name, kind, IFNAMSIZ) >= IFNAMSIZ) goto err_out; } else { + err = -EINVAL; if (strlcpy(act_name, name, IFNAMSIZ) >= IFNAMSIZ) goto err_out; } @@ -496,36 +509,35 @@ struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, * indicate this using -EAGAIN. */ if (a_o != NULL) { - *err = -EAGAIN; + err = -EAGAIN; goto err_mod; } #endif - *err = -ENOENT; + err = -ENOENT; goto err_out; } - *err = -ENOMEM; + err = -ENOMEM; a = kzalloc(sizeof(*a), GFP_KERNEL); if (a == NULL) goto err_mod; /* backward compatibility for policer */ if (name == NULL) - *err = a_o->init(tb[TCA_ACT_OPTIONS-1], est, a, ovr, bind); + err = a_o->init(tb[TCA_ACT_OPTIONS], est, a, ovr, bind); else - *err = a_o->init(rta, est, a, ovr, bind); - if (*err < 0) + err = a_o->init(nla, est, a, ovr, bind); + if (err < 0) goto err_free; /* module count goes up only when brand new policy is created if it exists and is only bound to in a_o->init() then ACT_P_CREATED is not returned (a zero is). */ - if (*err != ACT_P_CREATED) + if (err != ACT_P_CREATED) module_put(a_o->owner); a->ops = a_o; - *err = 0; return a; err_free: @@ -533,26 +545,26 @@ err_free: err_mod: module_put(a_o->owner); err_out: - return NULL; + return ERR_PTR(err); } -struct tc_action *tcf_action_init(struct rtattr *rta, struct rtattr *est, - char *name, int ovr, int bind, int *err) +struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, + char *name, int ovr, int bind) { - struct rtattr *tb[TCA_ACT_MAX_PRIO+1]; + struct nlattr *tb[TCA_ACT_MAX_PRIO+1]; struct tc_action *head = NULL, *act, *act_prev = NULL; + int err; int i; - if (rtattr_parse_nested(tb, TCA_ACT_MAX_PRIO, rta) < 0) { - *err = -EINVAL; - return head; - } + err = nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL); + if (err < 0) + return ERR_PTR(err); - for (i=0; i < TCA_ACT_MAX_PRIO && tb[i]; i++) { - act = tcf_action_init_1(tb[i], est, name, ovr, bind, err); - if (act == NULL) + for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) { + act = tcf_action_init_1(tb[i], est, name, ovr, bind); + if (IS_ERR(act)) goto err; - act->order = i+1; + act->order = i; if (head == NULL) head = act; @@ -565,7 +577,7 @@ struct tc_action *tcf_action_init(struct rtattr *rta, struct rtattr *est, err: if (head != NULL) tcf_action_destroy(head, bind); - return NULL; + return act; } int tcf_action_copy_stats(struct sk_buff *skb, struct tc_action *a, @@ -619,7 +631,7 @@ tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq, struct tcamsg *t; struct nlmsghdr *nlh; unsigned char *b = skb_tail_pointer(skb); - struct rtattr *x; + struct nlattr *nest; nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags); @@ -628,18 +640,19 @@ tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq, t->tca__pad1 = 0; t->tca__pad2 = 0; - x = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, TCA_ACT_TAB, 0, NULL); + nest = nla_nest_start(skb, TCA_ACT_TAB); + if (nest == NULL) + goto nla_put_failure; if (tcf_action_dump(skb, a, bind, ref) < 0) - goto rtattr_failure; + goto nla_put_failure; - x->rta_len = skb_tail_pointer(skb) - (u8 *)x; + nla_nest_end(skb, nest); nlh->nlmsg_len = skb_tail_pointer(skb) - b; return skb->len; -rtattr_failure: +nla_put_failure: nlmsg_failure: nlmsg_trim(skb, b); return -1; @@ -658,48 +671,51 @@ act_get_notify(u32 pid, struct nlmsghdr *n, struct tc_action *a, int event) return -EINVAL; } - return rtnl_unicast(skb, pid); + return rtnl_unicast(skb, &init_net, pid); } static struct tc_action * -tcf_action_get_1(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int *err) +tcf_action_get_1(struct nlattr *nla, struct nlmsghdr *n, u32 pid) { - struct rtattr *tb[TCA_ACT_MAX+1]; + struct nlattr *tb[TCA_ACT_MAX+1]; struct tc_action *a; int index; + int err; - *err = -EINVAL; - if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0) - return NULL; + err = nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL); + if (err < 0) + goto err_out; - if (tb[TCA_ACT_INDEX - 1] == NULL || - RTA_PAYLOAD(tb[TCA_ACT_INDEX - 1]) < sizeof(index)) - return NULL; - index = *(int *)RTA_DATA(tb[TCA_ACT_INDEX - 1]); + err = -EINVAL; + if (tb[TCA_ACT_INDEX] == NULL || + nla_len(tb[TCA_ACT_INDEX]) < sizeof(index)) + goto err_out; + index = nla_get_u32(tb[TCA_ACT_INDEX]); - *err = -ENOMEM; + err = -ENOMEM; a = kzalloc(sizeof(struct tc_action), GFP_KERNEL); if (a == NULL) - return NULL; + goto err_out; - *err = -EINVAL; - a->ops = tc_lookup_action(tb[TCA_ACT_KIND - 1]); + err = -EINVAL; + a->ops = tc_lookup_action(tb[TCA_ACT_KIND]); if (a->ops == NULL) goto err_free; if (a->ops->lookup == NULL) goto err_mod; - *err = -ENOENT; + err = -ENOENT; if (a->ops->lookup(a, index) == 0) goto err_mod; module_put(a->ops->owner); - *err = 0; return a; + err_mod: module_put(a->ops->owner); err_free: kfree(a); - return NULL; +err_out: + return ERR_PTR(err); } static void cleanup_a(struct tc_action *act) @@ -725,16 +741,16 @@ static struct tc_action *create_a(int i) return act; } -static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid) +static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid) { struct sk_buff *skb; unsigned char *b; struct nlmsghdr *nlh; struct tcamsg *t; struct netlink_callback dcb; - struct rtattr *x; - struct rtattr *tb[TCA_ACT_MAX+1]; - struct rtattr *kind; + struct nlattr *nest; + struct nlattr *tb[TCA_ACT_MAX+1]; + struct nlattr *kind; struct tc_action *a = create_a(0); int err = -EINVAL; @@ -752,10 +768,12 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid) b = skb_tail_pointer(skb); - if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0) + err = nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL); + if (err < 0) goto err_out; - kind = tb[TCA_ACT_KIND-1]; + err = -EINVAL; + kind = tb[TCA_ACT_KIND]; a->ops = tc_lookup_action(kind); if (a->ops == NULL) goto err_out; @@ -766,26 +784,27 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid) t->tca__pad1 = 0; t->tca__pad2 = 0; - x = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, TCA_ACT_TAB, 0, NULL); + nest = nla_nest_start(skb, TCA_ACT_TAB); + if (nest == NULL) + goto nla_put_failure; err = a->ops->walk(skb, &dcb, RTM_DELACTION, a); if (err < 0) - goto rtattr_failure; + goto nla_put_failure; - x->rta_len = skb_tail_pointer(skb) - (u8 *)x; + nla_nest_end(skb, nest); nlh->nlmsg_len = skb_tail_pointer(skb) - b; nlh->nlmsg_flags |= NLM_F_ROOT; module_put(a->ops->owner); kfree(a); - err = rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); + err = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); if (err > 0) return 0; return err; -rtattr_failure: +nla_put_failure: nlmsg_failure: module_put(a->ops->owner); err_out: @@ -795,25 +814,28 @@ err_out: } static int -tca_action_gd(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int event) +tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event) { - int i, ret = 0; - struct rtattr *tb[TCA_ACT_MAX_PRIO+1]; + int i, ret; + struct nlattr *tb[TCA_ACT_MAX_PRIO+1]; struct tc_action *head = NULL, *act, *act_prev = NULL; - if (rtattr_parse_nested(tb, TCA_ACT_MAX_PRIO, rta) < 0) - return -EINVAL; + ret = nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL); + if (ret < 0) + return ret; if (event == RTM_DELACTION && n->nlmsg_flags&NLM_F_ROOT) { if (tb[0] != NULL && tb[1] == NULL) return tca_action_flush(tb[0], n, pid); } - for (i=0; i < TCA_ACT_MAX_PRIO && tb[i]; i++) { - act = tcf_action_get_1(tb[i], n, pid, &ret); - if (act == NULL) + for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) { + act = tcf_action_get_1(tb[i], n, pid); + if (IS_ERR(act)) { + ret = PTR_ERR(act); goto err; - act->order = i+1; + } + act->order = i; if (head == NULL) head = act; @@ -842,7 +864,7 @@ tca_action_gd(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int event) /* now do the delete */ tcf_action_destroy(head, 0); - ret = rtnetlink_send(skb, pid, RTNLGRP_TC, + ret = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO); if (ret > 0) return 0; @@ -859,7 +881,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, struct tcamsg *t; struct nlmsghdr *nlh; struct sk_buff *skb; - struct rtattr *x; + struct nlattr *nest; unsigned char *b; int err = 0; @@ -875,23 +897,24 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, t->tca__pad1 = 0; t->tca__pad2 = 0; - x = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, TCA_ACT_TAB, 0, NULL); + nest = nla_nest_start(skb, TCA_ACT_TAB); + if (nest == NULL) + goto nla_put_failure; if (tcf_action_dump(skb, a, 0, 0) < 0) - goto rtattr_failure; + goto nla_put_failure; - x->rta_len = skb_tail_pointer(skb) - (u8 *)x; + nla_nest_end(skb, nest); nlh->nlmsg_len = skb_tail_pointer(skb) - b; NETLINK_CB(skb).dst_group = RTNLGRP_TC; - err = rtnetlink_send(skb, pid, RTNLGRP_TC, flags&NLM_F_ECHO); + err = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, flags&NLM_F_ECHO); if (err > 0) err = 0; return err; -rtattr_failure: +nla_put_failure: nlmsg_failure: kfree_skb(skb); return -1; @@ -899,16 +922,20 @@ nlmsg_failure: static int -tcf_action_add(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int ovr) +tcf_action_add(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int ovr) { int ret = 0; struct tc_action *act; struct tc_action *a; u32 seq = n->nlmsg_seq; - act = tcf_action_init(rta, NULL, NULL, ovr, 0, &ret); + act = tcf_action_init(nla, NULL, NULL, ovr, 0); if (act == NULL) goto done; + if (IS_ERR(act)) { + ret = PTR_ERR(act); + goto done; + } /* dump then free all the actions after update; inserted policy * stays intact @@ -924,11 +951,19 @@ done: static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg) { - struct rtattr **tca = arg; + struct net *net = sock_net(skb->sk); + struct nlattr *tca[TCA_ACT_MAX + 1]; u32 pid = skb ? NETLINK_CB(skb).pid : 0; int ret = 0, ovr = 0; - if (tca[TCA_ACT_TAB-1] == NULL) { + if (net != &init_net) + return -EINVAL; + + ret = nlmsg_parse(n, sizeof(struct tcamsg), tca, TCA_ACT_MAX, NULL); + if (ret < 0) + return ret; + + if (tca[TCA_ACT_TAB] == NULL) { printk("tc_ctl_action: received NO action attribs\n"); return -EINVAL; } @@ -946,15 +981,15 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg) if (n->nlmsg_flags&NLM_F_REPLACE) ovr = 1; replay: - ret = tcf_action_add(tca[TCA_ACT_TAB-1], n, pid, ovr); + ret = tcf_action_add(tca[TCA_ACT_TAB], n, pid, ovr); if (ret == -EAGAIN) goto replay; break; case RTM_DELACTION: - ret = tca_action_gd(tca[TCA_ACT_TAB-1], n, pid, RTM_DELACTION); + ret = tca_action_gd(tca[TCA_ACT_TAB], n, pid, RTM_DELACTION); break; case RTM_GETACTION: - ret = tca_action_gd(tca[TCA_ACT_TAB-1], n, pid, RTM_GETACTION); + ret = tca_action_gd(tca[TCA_ACT_TAB], n, pid, RTM_GETACTION); break; default: BUG(); @@ -963,33 +998,30 @@ replay: return ret; } -static struct rtattr * +static struct nlattr * find_dump_kind(struct nlmsghdr *n) { - struct rtattr *tb1, *tb2[TCA_ACT_MAX+1]; - struct rtattr *tb[TCA_ACT_MAX_PRIO + 1]; - struct rtattr *rta[TCAA_MAX + 1]; - struct rtattr *kind; - int min_len = NLMSG_LENGTH(sizeof(struct tcamsg)); - int attrlen = n->nlmsg_len - NLMSG_ALIGN(min_len); - struct rtattr *attr = (void *) n + NLMSG_ALIGN(min_len); - - if (rtattr_parse(rta, TCAA_MAX, attr, attrlen) < 0) + struct nlattr *tb1, *tb2[TCA_ACT_MAX+1]; + struct nlattr *tb[TCA_ACT_MAX_PRIO + 1]; + struct nlattr *nla[TCAA_MAX + 1]; + struct nlattr *kind; + + if (nlmsg_parse(n, sizeof(struct tcamsg), nla, TCAA_MAX, NULL) < 0) return NULL; - tb1 = rta[TCA_ACT_TAB - 1]; + tb1 = nla[TCA_ACT_TAB]; if (tb1 == NULL) return NULL; - if (rtattr_parse(tb, TCA_ACT_MAX_PRIO, RTA_DATA(tb1), - NLMSG_ALIGN(RTA_PAYLOAD(tb1))) < 0) - return NULL; - if (tb[0] == NULL) + if (nla_parse(tb, TCA_ACT_MAX_PRIO, nla_data(tb1), + NLMSG_ALIGN(nla_len(tb1)), NULL) < 0) return NULL; - if (rtattr_parse(tb2, TCA_ACT_MAX, RTA_DATA(tb[0]), - RTA_PAYLOAD(tb[0])) < 0) + if (tb[1] == NULL) return NULL; - kind = tb2[TCA_ACT_KIND-1]; + if (nla_parse(tb2, TCA_ACT_MAX, nla_data(tb[1]), + nla_len(tb[1]), NULL) < 0) + return NULL; + kind = tb2[TCA_ACT_KIND]; return kind; } @@ -997,14 +1029,18 @@ find_dump_kind(struct nlmsghdr *n) static int tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) { + struct net *net = sock_net(skb->sk); struct nlmsghdr *nlh; unsigned char *b = skb_tail_pointer(skb); - struct rtattr *x; + struct nlattr *nest; struct tc_action_ops *a_o; struct tc_action a; int ret = 0; struct tcamsg *t = (struct tcamsg *) NLMSG_DATA(cb->nlh); - struct rtattr *kind = find_dump_kind(cb->nlh); + struct nlattr *kind = find_dump_kind(cb->nlh); + + if (net != &init_net) + return 0; if (kind == NULL) { printk("tc_dump_action: action bad kind\n"); @@ -1021,7 +1057,7 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) if (a_o->walk == NULL) { printk("tc_dump_action: %s !capable of dumping table\n", a_o->kind); - goto rtattr_failure; + goto nla_put_failure; } nlh = NLMSG_PUT(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, @@ -1031,18 +1067,19 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) t->tca__pad1 = 0; t->tca__pad2 = 0; - x = (struct rtattr *)skb_tail_pointer(skb); - RTA_PUT(skb, TCA_ACT_TAB, 0, NULL); + nest = nla_nest_start(skb, TCA_ACT_TAB); + if (nest == NULL) + goto nla_put_failure; ret = a_o->walk(skb, cb, RTM_GETACTION, &a); if (ret < 0) - goto rtattr_failure; + goto nla_put_failure; if (ret > 0) { - x->rta_len = skb_tail_pointer(skb) - (u8 *)x; + nla_nest_end(skb, nest); ret = skb->len; } else - nlmsg_trim(skb, x); + nla_nest_cancel(skb, nest); nlh->nlmsg_len = skb_tail_pointer(skb) - b; if (NETLINK_CB(cb->skb).pid && ret) @@ -1050,7 +1087,7 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) module_put(a_o->owner); return skb->len; -rtattr_failure: +nla_put_failure: nlmsg_failure: module_put(a_o->owner); nlmsg_trim(skb, b); @@ -1067,8 +1104,3 @@ static int __init tc_action_init(void) } subsys_initcall(tc_action_init); - -EXPORT_SYMBOL(tcf_register_action); -EXPORT_SYMBOL(tcf_unregister_action); -EXPORT_SYMBOL(tcf_action_exec); -EXPORT_SYMBOL(tcf_action_dump_1);