diff options
author | Patrick McHardy <kaber@trash.net> | 2008-01-23 20:33:32 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:11:18 -0800 |
commit | cee63723b358e594225e812d6e14a2a0abfd5c88 (patch) | |
tree | 847f929e0f445cca8cdf55d7c17a56b0d0f2ec68 /net | |
parent | ab27cfb85c5778400740ad0c401bde65616774eb (diff) | |
download | op-kernel-dev-cee63723b358e594225e812d6e14a2a0abfd5c88.zip op-kernel-dev-cee63723b358e594225e812d6e14a2a0abfd5c88.tar.gz |
[NET_SCHED]: Propagate nla_parse return value
nla_parse() returns more detailed errno codes, propagate them back on
error.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/sched/act_api.c | 29 | ||||
-rw-r--r-- | net/sched/act_gact.c | 7 | ||||
-rw-r--r-- | net/sched/act_ipt.c | 6 | ||||
-rw-r--r-- | net/sched/act_mirred.c | 8 | ||||
-rw-r--r-- | net/sched/act_nat.c | 8 | ||||
-rw-r--r-- | net/sched/act_pedit.c | 8 | ||||
-rw-r--r-- | net/sched/act_police.c | 6 | ||||
-rw-r--r-- | net/sched/act_simple.c | 8 | ||||
-rw-r--r-- | net/sched/cls_basic.c | 7 | ||||
-rw-r--r-- | net/sched/cls_fw.c | 5 | ||||
-rw-r--r-- | net/sched/cls_route.c | 5 | ||||
-rw-r--r-- | net/sched/cls_rsvp.h | 5 | ||||
-rw-r--r-- | net/sched/cls_tcindex.c | 6 | ||||
-rw-r--r-- | net/sched/cls_u32.c | 5 | ||||
-rw-r--r-- | net/sched/em_meta.c | 6 | ||||
-rw-r--r-- | net/sched/ematch.c | 6 | ||||
-rw-r--r-- | net/sched/sch_atm.c | 6 | ||||
-rw-r--r-- | net/sched/sch_cbq.c | 14 | ||||
-rw-r--r-- | net/sched/sch_dsmark.c | 14 | ||||
-rw-r--r-- | net/sched/sch_gred.c | 16 | ||||
-rw-r--r-- | net/sched/sch_hfsc.c | 7 | ||||
-rw-r--r-- | net/sched/sch_htb.c | 23 | ||||
-rw-r--r-- | net/sched/sch_prio.c | 9 | ||||
-rw-r--r-- | net/sched/sch_red.c | 7 | ||||
-rw-r--r-- | net/sched/sch_tbf.c | 10 |
25 files changed, 171 insertions, 60 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index ea80f82..87818d7 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -473,17 +473,18 @@ struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, struct nlattr *kind; int err; - err = -EINVAL; - if (name == NULL) { - if (nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL) < 0) + err = nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL); + if (err < 0) goto err_out; + err = -EINVAL; kind = tb[TCA_ACT_KIND]; if (kind == NULL) goto err_out; if (nla_strlcpy(act_name, kind, IFNAMSIZ) >= IFNAMSIZ) goto err_out; } else { + err = -EINVAL; if (strlcpy(act_name, name, IFNAMSIZ) >= IFNAMSIZ) goto err_out; } @@ -548,10 +549,12 @@ struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, { struct nlattr *tb[TCA_ACT_MAX_PRIO+1]; struct tc_action *head = NULL, *act, *act_prev = NULL; + int err; int i; - if (nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL) < 0) - return ERR_PTR(-EINVAL); + err = nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL); + if (err < 0) + return ERR_PTR(err); for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) { act = tcf_action_init_1(tb[i], est, name, ovr, bind); @@ -674,10 +677,11 @@ tcf_action_get_1(struct nlattr *nla, struct nlmsghdr *n, u32 pid) int index; int err; - err = -EINVAL; - if (nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL) < 0) + err = nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL); + if (err < 0) goto err_out; + err = -EINVAL; if (tb[TCA_ACT_INDEX] == NULL || nla_len(tb[TCA_ACT_INDEX]) < sizeof(index)) goto err_out; @@ -759,9 +763,11 @@ static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid) b = skb_tail_pointer(skb); - if (nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL) < 0) + err = nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL); + if (err < 0) goto err_out; + err = -EINVAL; kind = tb[TCA_ACT_KIND]; a->ops = tc_lookup_action(kind); if (a->ops == NULL) @@ -804,12 +810,13 @@ err_out: static int tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event) { - int i, ret = 0; + int i, ret; struct nlattr *tb[TCA_ACT_MAX_PRIO+1]; struct tc_action *head = NULL, *act, *act_prev = NULL; - if (nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL) < 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) diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index 5402cf8..df214d4 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -61,10 +61,15 @@ static int tcf_gact_init(struct nlattr *nla, struct nlattr *est, struct tcf_gact *gact; struct tcf_common *pc; int ret = 0; + int err; - if (nla == NULL || nla_parse_nested(tb, TCA_GACT_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_GACT_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_GACT_PARMS] == NULL || nla_len(tb[TCA_GACT_PARMS]) < sizeof(*parm)) return -EINVAL; diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c index fee5282..1269334 100644 --- a/net/sched/act_ipt.c +++ b/net/sched/act_ipt.c @@ -104,9 +104,13 @@ static int tcf_ipt_init(struct nlattr *nla, struct nlattr *est, u32 hook = 0; u32 index = 0; - if (nla == NULL || nla_parse_nested(tb, TCA_IPT_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_IPT_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_IPT_HOOK] == NULL || nla_len(tb[TCA_IPT_HOOK]) < sizeof(u32)) return -EINVAL; diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index db943a8c..6cb5e30 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -62,12 +62,16 @@ static int tcf_mirred_init(struct nlattr *nla, struct nlattr *est, struct tcf_mirred *m; struct tcf_common *pc; struct net_device *dev = NULL; - int ret = 0; + int ret = 0, err; int ok_push = 0; - if (nla == NULL || nla_parse_nested(tb, TCA_MIRRED_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_MIRRED_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_MIRRED_PARMS] == NULL || nla_len(tb[TCA_MIRRED_PARMS]) < sizeof(*parm)) return -EINVAL; diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c index be007bb..5a512d4 100644 --- a/net/sched/act_nat.c +++ b/net/sched/act_nat.c @@ -45,13 +45,17 @@ static int tcf_nat_init(struct nlattr *nla, struct nlattr *est, { struct nlattr *tb[TCA_NAT_MAX + 1]; struct tc_nat *parm; - int ret = 0; + int ret = 0, err; struct tcf_nat *p; struct tcf_common *pc; - if (nla == NULL || nla_parse_nested(tb, TCA_NAT_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_NAT_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_NAT_PARMS] == NULL || nla_len(tb[TCA_NAT_PARMS]) < sizeof(*parm)) return -EINVAL; diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index 88d8a15..1b9ca45 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -38,15 +38,19 @@ static int tcf_pedit_init(struct nlattr *nla, struct nlattr *est, { struct nlattr *tb[TCA_PEDIT_MAX + 1]; struct tc_pedit *parm; - int ret = 0; + int ret = 0, err; struct tcf_pedit *p; struct tcf_common *pc; struct tc_pedit_key *keys = NULL; int ksize; - if (nla == NULL || nla_parse_nested(tb, TCA_PEDIT_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_PEDIT_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_PEDIT_PARMS] == NULL || nla_len(tb[TCA_PEDIT_PARMS]) < sizeof(*parm)) return -EINVAL; diff --git a/net/sched/act_police.c b/net/sched/act_police.c index 3af5759..c0fce9b 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -129,9 +129,13 @@ static int tcf_act_police_locate(struct nlattr *nla, struct nlattr *est, struct qdisc_rate_table *R_tab = NULL, *P_tab = NULL; int size; - if (nla == NULL || nla_parse_nested(tb, TCA_POLICE_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_POLICE_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_POLICE_TBF] == NULL) return -EINVAL; size = nla_len(tb[TCA_POLICE_TBF]); diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c index d3226e2..cedaadf 100644 --- a/net/sched/act_simple.c +++ b/net/sched/act_simple.c @@ -93,11 +93,15 @@ static int tcf_simp_init(struct nlattr *nla, struct nlattr *est, struct tcf_common *pc; void *defdata; u32 datalen = 0; - int ret = 0; + int ret = 0, err; - if (nla == NULL || nla_parse_nested(tb, TCA_DEF_MAX, nla, NULL) < 0) + if (nla == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_DEF_MAX, nla, NULL); + if (err < 0) + return err; + if (tb[TCA_DEF_PARMS] == NULL || nla_len(tb[TCA_DEF_PARMS]) < sizeof(*parm)) return -EINVAL; diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c index 3953da3..524b788 100644 --- a/net/sched/cls_basic.c +++ b/net/sched/cls_basic.c @@ -166,7 +166,7 @@ errout: static int basic_change(struct tcf_proto *tp, unsigned long base, u32 handle, struct nlattr **tca, unsigned long *arg) { - int err = -EINVAL; + int err; struct basic_head *head = (struct basic_head *) tp->root; struct nlattr *tb[TCA_BASIC_MAX + 1]; struct basic_filter *f = (struct basic_filter *) *arg; @@ -174,8 +174,9 @@ static int basic_change(struct tcf_proto *tp, unsigned long base, u32 handle, if (tca[TCA_OPTIONS] == NULL) return -EINVAL; - if (nla_parse_nested(tb, TCA_BASIC_MAX, tca[TCA_OPTIONS], NULL) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_BASIC_MAX, tca[TCA_OPTIONS], NULL); + if (err < 0) + return err; if (f != NULL) { if (handle && f->handle != handle) diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c index db6e90a..a1a9f4d 100644 --- a/net/sched/cls_fw.c +++ b/net/sched/cls_fw.c @@ -246,8 +246,9 @@ static int fw_change(struct tcf_proto *tp, unsigned long base, if (!opt) return handle ? -EINVAL : 0; - if (nla_parse_nested(tb, TCA_FW_MAX, opt, NULL) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_FW_MAX, opt, NULL); + if (err < 0) + return err; if (f != NULL) { if (f->id != handle && handle) diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c index b1aae84..3aa8109 100644 --- a/net/sched/cls_route.c +++ b/net/sched/cls_route.c @@ -440,8 +440,9 @@ static int route4_change(struct tcf_proto *tp, unsigned long base, if (opt == NULL) return handle ? -EINVAL : 0; - if (nla_parse_nested(tb, TCA_ROUTE4_MAX, opt, NULL) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_ROUTE4_MAX, opt, NULL); + if (err < 0) + return err; if ((f = (struct route4_filter*)*arg) != NULL) { if (f->handle != handle && handle) diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h index 2364c79..5747408 100644 --- a/net/sched/cls_rsvp.h +++ b/net/sched/cls_rsvp.h @@ -416,8 +416,9 @@ static int rsvp_change(struct tcf_proto *tp, unsigned long base, if (opt == NULL) return handle ? -EINVAL : 0; - if (nla_parse_nested(tb, TCA_RSVP_MAX, opt, NULL) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_RSVP_MAX, opt, NULL); + if (err < 0) + return err; err = tcf_exts_validate(tp, tb, tca[TCA_RATE-1], &e, &rsvp_ext_map); if (err < 0) diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c index ed80239..6b84d27 100644 --- a/net/sched/cls_tcindex.c +++ b/net/sched/cls_tcindex.c @@ -350,6 +350,7 @@ tcindex_change(struct tcf_proto *tp, unsigned long base, u32 handle, struct nlattr *tb[TCA_TCINDEX_MAX + 1]; struct tcindex_data *p = PRIV(tp); struct tcindex_filter_result *r = (struct tcindex_filter_result *) *arg; + int err; pr_debug("tcindex_change(tp %p,handle 0x%08x,tca %p,arg %p),opt %p," "p %p,r %p,*arg 0x%lx\n", @@ -358,8 +359,9 @@ tcindex_change(struct tcf_proto *tp, unsigned long base, u32 handle, if (!opt) return 0; - if (nla_parse_nested(tb, TCA_TCINDEX_MAX, opt, NULL) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_TCINDEX_MAX, opt, NULL); + if (err < 0) + return err; return tcindex_set_parms(tp, base, handle, p, r, tb, tca[TCA_RATE]); } diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index aaf5049..3228cc4 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -531,8 +531,9 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle, if (opt == NULL) return handle ? -EINVAL : 0; - if (nla_parse_nested(tb, TCA_U32_MAX, opt, NULL) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_U32_MAX, opt, NULL); + if (err < 0) + return err; if ((n = (struct tc_u_knode*)*arg) != NULL) { if (TC_U32_KEY(n->handle) == 0) diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c index 92b6863..dd57236 100644 --- a/net/sched/em_meta.c +++ b/net/sched/em_meta.c @@ -749,14 +749,16 @@ static inline int meta_is_supported(struct meta_value *val) static int em_meta_change(struct tcf_proto *tp, void *data, int len, struct tcf_ematch *m) { - int err = -EINVAL; + int err; struct nlattr *tb[TCA_EM_META_MAX + 1]; struct tcf_meta_hdr *hdr; struct meta_match *meta = NULL; - if (nla_parse(tb, TCA_EM_META_MAX, data, len, NULL) < 0) + err = nla_parse(tb, TCA_EM_META_MAX, data, len, NULL); + if (err < 0) goto errout; + err = -EINVAL; if (tb[TCA_EM_META_HDR] == NULL || nla_len(tb[TCA_EM_META_HDR]) < sizeof(*hdr)) goto errout; diff --git a/net/sched/ematch.c b/net/sched/ematch.c index 72d9b27..d2b480f 100644 --- a/net/sched/ematch.c +++ b/net/sched/ematch.c @@ -301,7 +301,7 @@ errout: int tcf_em_tree_validate(struct tcf_proto *tp, struct nlattr *nla, struct tcf_ematch_tree *tree) { - int idx, list_len, matches_len, err = -EINVAL; + int idx, list_len, matches_len, err; struct nlattr *tb[TCA_EMATCH_TREE_MAX + 1]; struct nlattr *rt_match, *rt_hdr, *rt_list; struct tcf_ematch_tree_hdr *tree_hdr; @@ -312,9 +312,11 @@ int tcf_em_tree_validate(struct tcf_proto *tp, struct nlattr *nla, return 0; } - if (nla_parse_nested(tb, TCA_EMATCH_TREE_MAX, nla, NULL) < 0) + err = nla_parse_nested(tb, TCA_EMATCH_TREE_MAX, nla, NULL); + if (err < 0) goto errout; + err = -EINVAL; rt_hdr = tb[TCA_EMATCH_TREE_HDR]; rt_list = tb[TCA_EMATCH_TREE_LIST]; diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c index e587391..aaa32a2 100644 --- a/net/sched/sch_atm.c +++ b/net/sched/sch_atm.c @@ -223,8 +223,12 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent, */ if (flow) return -EBUSY; - if (opt == NULL || nla_parse_nested(tb, TCA_ATM_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + error = nla_parse_nested(tb, TCA_ATM_MAX, opt, NULL); + if (error < 0) + return error; + if (!tb[TCA_ATM_FD] || nla_len(tb[TCA_ATM_FD]) < sizeof(fd)) return -EINVAL; fd = *(int *)nla_data(tb[TCA_ATM_FD]); diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 5c8667e..585f8a6 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -1382,9 +1382,13 @@ static int cbq_init(struct Qdisc *sch, struct nlattr *opt) struct cbq_sched_data *q = qdisc_priv(sch); struct nlattr *tb[TCA_CBQ_MAX + 1]; struct tc_ratespec *r; + int err; + + err = nla_parse_nested(tb, TCA_CBQ_MAX, opt, NULL); + if (err < 0) + return err; - if (nla_parse_nested(tb, TCA_CBQ_MAX, opt, NULL) < 0 || - tb[TCA_CBQ_RTAB] == NULL || tb[TCA_CBQ_RATE] == NULL || + if (tb[TCA_CBQ_RTAB] == NULL || tb[TCA_CBQ_RATE] == NULL || nla_len(tb[TCA_CBQ_RATE]) < sizeof(struct tc_ratespec)) return -EINVAL; @@ -1764,9 +1768,13 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t struct cbq_class *parent; struct qdisc_rate_table *rtab = NULL; - if (opt==NULL || nla_parse_nested(tb, TCA_CBQ_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_CBQ_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_CBQ_OVL_STRATEGY] && nla_len(tb[TCA_CBQ_OVL_STRATEGY]) < sizeof(struct tc_cbq_ovl)) return -EINVAL; diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c index f183ab7..f1d0a08 100644 --- a/net/sched/sch_dsmark.c +++ b/net/sched/sch_dsmark.c @@ -116,9 +116,14 @@ static int dsmark_change(struct Qdisc *sch, u32 classid, u32 parent, goto errout; } - if (!opt || nla_parse_nested(tb, TCA_DSMARK_MAX, opt, NULL)) + if (!opt) goto errout; + err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, NULL); + if (err < 0) + return err; + + err = -EINVAL; if (tb[TCA_DSMARK_MASK]) { if (nla_len(tb[TCA_DSMARK_MASK]) < sizeof(u8)) goto errout; @@ -351,9 +356,14 @@ static int dsmark_init(struct Qdisc *sch, struct nlattr *opt) pr_debug("dsmark_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt); - if (!opt || nla_parse_nested(tb, TCA_DSMARK_MAX, opt, NULL) < 0) + if (!opt) + goto errout; + + err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, NULL); + if (err < 0) goto errout; + err = -EINVAL; if (nla_len(tb[TCA_DSMARK_INDICES]) < sizeof(u16)) goto errout; indices = nla_get_u16(tb[TCA_DSMARK_INDICES]); diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index 6b78483..365c7d8 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -430,12 +430,16 @@ static int gred_change(struct Qdisc *sch, struct nlattr *opt) struct gred_sched *table = qdisc_priv(sch); struct tc_gred_qopt *ctl; struct nlattr *tb[TCA_GRED_MAX + 1]; - int err = -EINVAL, prio = GRED_DEF_PRIO; + int err, prio = GRED_DEF_PRIO; u8 *stab; - if (opt == NULL || nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_GRED_PARMS] == NULL && tb[TCA_GRED_STAB] == NULL) return gred_change_table_def(sch, opt); @@ -445,6 +449,7 @@ static int gred_change(struct Qdisc *sch, struct nlattr *opt) nla_len(tb[TCA_GRED_STAB]) < 256) return -EINVAL; + err = -EINVAL; ctl = nla_data(tb[TCA_GRED_PARMS]); stab = nla_data(tb[TCA_GRED_STAB]); @@ -489,10 +494,15 @@ errout: static int gred_init(struct Qdisc *sch, struct nlattr *opt) { struct nlattr *tb[TCA_GRED_MAX + 1]; + int err; - if (opt == NULL || nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_GRED_PARMS] || tb[TCA_GRED_STAB]) return -EINVAL; diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index 4e6a164..fcb4826 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -997,10 +997,15 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr *tb[TCA_HFSC_MAX + 1]; struct tc_service_curve *rsc = NULL, *fsc = NULL, *usc = NULL; u64 cur_time; + int err; - if (opt == NULL || nla_parse_nested(tb, TCA_HFSC_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_HFSC_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_HFSC_RSC]) { if (nla_len(tb[TCA_HFSC_RSC]) < sizeof(*rsc)) return -EINVAL; diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 3b3ff64..512df9a0 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -997,9 +997,17 @@ static int htb_init(struct Qdisc *sch, struct nlattr *opt) struct htb_sched *q = qdisc_priv(sch); struct nlattr *tb[TCA_HTB_INIT + 1]; struct tc_htb_glob *gopt; + int err; int i; - if (!opt || nla_parse_nested(tb, TCA_HTB_INIT, opt, NULL) || - tb[TCA_HTB_INIT] == NULL || + + if (!opt) + return -EINVAL; + + err = nla_parse_nested(tb, TCA_HTB_INIT, opt, NULL); + if (err < 0) + return err; + + if (tb[TCA_HTB_INIT] == NULL || nla_len(tb[TCA_HTB_INIT]) < sizeof(*gopt)) { printk(KERN_ERR "HTB: hey probably you have bad tc tool ?\n"); return -EINVAL; @@ -1302,8 +1310,15 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, struct tc_htb_opt *hopt; /* extract all subattrs from opt attr */ - if (!opt || nla_parse_nested(tb, TCA_HTB_RTAB, opt, NULL) || - tb[TCA_HTB_PARMS] == NULL || + if (!opt) + goto failure; + + err = nla_parse_nested(tb, TCA_HTB_RTAB, opt, NULL); + if (err < 0) + goto failure; + + err = -EINVAL; + if (tb[TCA_HTB_PARMS] == NULL || nla_len(tb[TCA_HTB_PARMS]) < sizeof(*hopt)) goto failure; diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c index a4f932d..4aa2b45 100644 --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -229,11 +229,14 @@ static int prio_tune(struct Qdisc *sch, struct nlattr *opt) struct prio_sched_data *q = qdisc_priv(sch); struct tc_prio_qopt *qopt; struct nlattr *tb[TCA_PRIO_MAX + 1]; + int err; int i; - if (nla_parse_nested_compat(tb, TCA_PRIO_MAX, opt, NULL, qopt, - sizeof(*qopt))) - return -EINVAL; + err = nla_parse_nested_compat(tb, TCA_PRIO_MAX, opt, NULL, qopt, + sizeof(*qopt)); + if (err < 0) + return err; + q->bands = qopt->bands; /* If we're multiqueue, make sure the number of incoming bands * matches the number of queues on the device we're associating with. diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 6ce8da5..dcf6afc 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -207,10 +207,15 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt) struct nlattr *tb[TCA_RED_MAX + 1]; struct tc_red_qopt *ctl; struct Qdisc *child = NULL; + int err; - if (opt == NULL || nla_parse_nested(tb, TCA_RED_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_RED_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_RED_PARMS] == NULL || nla_len(tb[TCA_RED_PARMS]) < sizeof(*ctl) || tb[TCA_RED_STAB] == NULL || diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c index 6c4ad7e..f9b1543 100644 --- a/net/sched/sch_tbf.c +++ b/net/sched/sch_tbf.c @@ -272,7 +272,7 @@ static struct Qdisc *tbf_create_dflt_qdisc(struct Qdisc *sch, u32 limit) static int tbf_change(struct Qdisc* sch, struct nlattr *opt) { - int err = -EINVAL; + int err; struct tbf_sched_data *q = qdisc_priv(sch); struct nlattr *tb[TCA_TBF_PTAB + 1]; struct tc_tbf_qopt *qopt; @@ -281,8 +281,12 @@ static int tbf_change(struct Qdisc* sch, struct nlattr *opt) struct Qdisc *child = NULL; int max_size,n; - if (nla_parse_nested(tb, TCA_TBF_PTAB, opt, NULL) || - tb[TCA_TBF_PARMS] == NULL || + err = nla_parse_nested(tb, TCA_TBF_PTAB, opt, NULL); + if (err < 0) + return err; + + err = -EINVAL; + if (tb[TCA_TBF_PARMS] == NULL || nla_len(tb[TCA_TBF_PARMS]) < sizeof(*qopt)) goto done; |