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net_sched: refactor TC action init API 

TC action ->init() API has 10 parameters, it becomes harder
to read. Some of them are just boolean and can be replaced
by flags. Similarly for the internal API tcf_action_init()
and tcf_exts_validate().

This patch converts them to flags and fold them into
the upper 16 bits of "flags", whose lower 16 bits are still
reserved for user-space. More specifically, the following
kernel flags are introduced:

TCA_ACT_FLAGS_POLICE replace 'name' in a few contexts, to
distinguish whether it is compatible with policer.

TCA_ACT_FLAGS_BIND replaces 'bind', to indicate whether
this action is bound to a filter.

TCA_ACT_FLAGS_REPLACE  replaces 'ovr' in most contexts,
means we are replacing an existing action.

TCA_ACT_FLAGS_NO_RTNL replaces 'rtnl_held' but has the
opposite meaning, because we still hold RTNL in most
cases.

The only user-space flag TCA_ACT_FLAGS_NO_PERCPU_STATS is
untouched and still stored as before.

I have tested this patch with tdc and I do not see any
failure related to this patch.

Tested-by: Vlad Buslov <vladbu@nvidia.com>
Acked-by: Jamal Hadi Salim<jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cong Wang 2021-07-29 16:12:14 -07:00 committed by David S. Miller
parent 451395f798
commit 695176bfe5
37 changed files with 185 additions and 169 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
include/net/act_api.h
View File

@ -58,6 +58,14 @@ struct tc_action {
#define TCA_ACT_HW_STATS_ANY (TCA_ACT_HW_STATS_IMMEDIATE | \
TCA_ACT_HW_STATS_DELAYED)
/* Reserve 16 bits for user-space. See TCA_ACT_FLAGS_NO_PERCPU_STATS. */
#define TCA_ACT_FLAGS_USER_BITS 16
#define TCA_ACT_FLAGS_USER_MASK 0xffff
#define TCA_ACT_FLAGS_POLICE (1U << TCA_ACT_FLAGS_USER_BITS)
#define TCA_ACT_FLAGS_BIND (1U << (TCA_ACT_FLAGS_USER_BITS + 1))
#define TCA_ACT_FLAGS_REPLACE (1U << (TCA_ACT_FLAGS_USER_BITS + 2))
#define TCA_ACT_FLAGS_NO_RTNL (1U << (TCA_ACT_FLAGS_USER_BITS + 3))
/* Update lastuse only if needed, to avoid dirtying a cache line.
* We use a temp variable to avoid fetching jiffies twice.
*/
@ -99,8 +107,8 @@ struct tc_action_ops {
void (*cleanup)(struct tc_action *);
int (*lookup)(struct net *net, struct tc_action **a, u32 index);
int (*init)(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **act, int ovr,
int bind, bool rtnl_held, struct tcf_proto *tp,
struct nlattr *est, struct tc_action **act,
struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack);
int (*walk)(struct net *, struct sk_buff *,
struct netlink_callback *, int,
@ -179,18 +187,16 @@ int tcf_action_destroy(struct tc_action *actions[], int bind);
int tcf_action_exec(struct sk_buff *skb, struct tc_action **actions,
int nr_actions, struct tcf_result *res);
int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
struct nlattr *est, char *name, int ovr, int bind,
struct nlattr *est,
struct tc_action *actions[], int init_res[], size_t *attr_size,
bool rtnl_held, struct netlink_ext_ack *extack);
struct tc_action_ops *tc_action_load_ops(char *name, struct nlattr *nla,
u32 flags, struct netlink_ext_ack *extack);
struct tc_action_ops *tc_action_load_ops(struct nlattr *nla, bool police,
bool rtnl_held,
struct netlink_ext_ack *extack);
struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
struct nlattr *nla, struct nlattr *est,
char *name, int ovr, int bind,
struct tc_action_ops *a_o, int *init_res,
bool rtnl_held,
struct netlink_ext_ack *extack);
u32 flags, struct netlink_ext_ack *extack);
int tcf_action_dump(struct sk_buff *skb, struct tc_action *actions[], int bind,
int ref, bool terse);
int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);

2
include/net/pkt_cls.h
View File

@ -319,7 +319,7 @@ tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
int tcf_exts_validate(struct net *net, struct tcf_proto *tp,
struct nlattr **tb, struct nlattr *rate_tlv,
struct tcf_exts *exts, bool ovr, bool rtnl_held,
struct tcf_exts *exts, u32 flags,
struct netlink_ext_ack *extack);
void tcf_exts_destroy(struct tcf_exts *exts);
void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src);

2
include/net/sch_generic.h
View File

@ -357,7 +357,7 @@ struct tcf_proto_ops {
int (*change)(struct net *net, struct sk_buff *,
struct tcf_proto*, unsigned long,
u32 handle, struct nlattr **,
void **, bool, bool,
void **, u32,
struct netlink_ext_ack *);
int (*delete)(struct tcf_proto *tp, void *arg,
bool *last, bool rtnl_held,

1
include/uapi/linux/pkt_cls.h
View File

@ -22,6 +22,7 @@ enum {
__TCA_ACT_MAX
};
/* See other TCA_ACT_FLAGS_ * flags in include/net/act_api.h. */
#define TCA_ACT_FLAGS_NO_PERCPU_STATS 1 /* Don't use percpu allocator for
* actions stats.
*/

61
net/sched/act_api.c
View File

@ -495,7 +495,7 @@ int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
p->tcfa_tm.install = jiffies;
p->tcfa_tm.lastuse = jiffies;
p->tcfa_tm.firstuse = 0;
p->tcfa_flags = flags;
p->tcfa_flags = flags & TCA_ACT_FLAGS_USER_MASK;
if (est) {
err = gen_new_estimator(&p->tcfa_bstats, p->cpu_bstats,
&p->tcfa_rate_est,
@ -941,7 +941,7 @@ void tcf_idr_insert_many(struct tc_action *actions[])
}
}
struct tc_action_ops *tc_action_load_ops(char *name, struct nlattr *nla,
struct tc_action_ops *tc_action_load_ops(struct nlattr *nla, bool police,
bool rtnl_held,
struct netlink_ext_ack *extack)
{
@ -951,7 +951,7 @@ struct tc_action_ops *tc_action_load_ops(char *name, struct nlattr *nla,
struct nlattr *kind;
int err;
if (name == NULL) {
if (!police) {
err = nla_parse_nested_deprecated(tb, TCA_ACT_MAX, nla,
tcf_action_policy, extack);
if (err < 0)
@ -967,7 +967,7 @@ struct tc_action_ops *tc_action_load_ops(char *name, struct nlattr *nla,
return ERR_PTR(err);
}
} else {
if (strlcpy(act_name, name, IFNAMSIZ) >= IFNAMSIZ) {
if (strlcpy(act_name, "police", IFNAMSIZ) >= IFNAMSIZ) {
NL_SET_ERR_MSG(extack, "TC action name too long");
return ERR_PTR(-EINVAL);
}
@ -1004,12 +1004,11 @@ struct tc_action_ops *tc_action_load_ops(char *name, struct nlattr *nla,
struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
struct nlattr *nla, struct nlattr *est,
char *name, int ovr, int bind,
struct tc_action_ops *a_o, int *init_res,
bool rtnl_held,
struct netlink_ext_ack *extack)
u32 flags, struct netlink_ext_ack *extack)
{
struct nla_bitfield32 flags = { 0, 0 };
bool police = flags & TCA_ACT_FLAGS_POLICE;
struct nla_bitfield32 userflags = { 0, 0 };
u8 hw_stats = TCA_ACT_HW_STATS_ANY;
struct nlattr *tb[TCA_ACT_MAX + 1];
struct tc_cookie *cookie = NULL;
@ -1017,7 +1016,7 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
int err;
/* backward compatibility for policer */
if (name == NULL) {
if (!police) {
err = nla_parse_nested_deprecated(tb, TCA_ACT_MAX, nla,
tcf_action_policy, extack);
if (err < 0)
@ -1032,22 +1031,22 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
}
hw_stats = tcf_action_hw_stats_get(tb[TCA_ACT_HW_STATS]);
if (tb[TCA_ACT_FLAGS])
flags = nla_get_bitfield32(tb[TCA_ACT_FLAGS]);
userflags = nla_get_bitfield32(tb[TCA_ACT_FLAGS]);
err = a_o->init(net, tb[TCA_ACT_OPTIONS], est, &a, ovr, bind,
rtnl_held, tp, flags.value, extack);
err = a_o->init(net, tb[TCA_ACT_OPTIONS], est, &a, tp,
userflags.value | flags, extack);
} else {
err = a_o->init(net, nla, est, &a, ovr, bind, rtnl_held,
tp, flags.value, extack);
err = a_o->init(net, nla, est, &a, tp, userflags.value | flags,
extack);
}
if (err < 0)
goto err_out;
*init_res = err;
if (!name && tb[TCA_ACT_COOKIE])
if (!police && tb[TCA_ACT_COOKIE])
tcf_set_action_cookie(&a->act_cookie, cookie);
if (!name)
if (!police)
a->hw_stats = hw_stats;
return a;
@ -1063,9 +1062,9 @@ err_out:
/* Returns numbers of initialized actions or negative error. */
int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
struct nlattr *est, char *name, int ovr, int bind,
struct tc_action *actions[], int init_res[], size_t *attr_size,
bool rtnl_held, struct netlink_ext_ack *extack)
struct nlattr *est, struct tc_action *actions[],
int init_res[], size_t *attr_size, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_ops *ops[TCA_ACT_MAX_PRIO] = {};
struct nlattr *tb[TCA_ACT_MAX_PRIO + 1];
@ -1082,7 +1081,9 @@ int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) {
struct tc_action_ops *a_o;
a_o = tc_action_load_ops(name, tb[i], rtnl_held, extack);
a_o = tc_action_load_ops(tb[i], flags & TCA_ACT_FLAGS_POLICE,
!(flags & TCA_ACT_FLAGS_NO_RTNL),
extack);
if (IS_ERR(a_o)) {
err = PTR_ERR(a_o);
goto err_mod;
@ -1091,9 +1092,8 @@ int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
}
for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) {
act = tcf_action_init_1(net, tp, tb[i], est, name, ovr, bind,
ops[i - 1], &init_res[i - 1], rtnl_held,
extack);
act = tcf_action_init_1(net, tp, tb[i], est, ops[i - 1],
&init_res[i - 1], flags, extack);
if (IS_ERR(act)) {
err = PTR_ERR(act);
goto err;
@ -1113,7 +1113,7 @@ int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
goto err_mod;
err:
tcf_action_destroy(actions, bind);
tcf_action_destroy(actions, flags & TCA_ACT_FLAGS_BIND);
err_mod:
for (i = 0; i < TCA_ACT_MAX_PRIO; i++) {
if (ops[i])
@ -1495,7 +1495,7 @@ tcf_add_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[],
}
static int tcf_action_add(struct net *net, struct nlattr *nla,
struct nlmsghdr *n, u32 portid, int ovr,
struct nlmsghdr *n, u32 portid, u32 flags,
struct netlink_ext_ack *extack)
{
size_t attr_size = 0;
@ -1504,8 +1504,8 @@ static int tcf_action_add(struct net *net, struct nlattr *nla,
int init_res[TCA_ACT_MAX_PRIO] = {};
for (loop = 0; loop < 10; loop++) {
ret = tcf_action_init(net, NULL, nla, NULL, NULL, ovr, 0,
actions, init_res, &attr_size, true, extack);
ret = tcf_action_init(net, NULL, nla, NULL, actions, init_res,
&attr_size, flags, extack);
if (ret != -EAGAIN)
break;
}
@ -1535,7 +1535,8 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n,
struct net *net = sock_net(skb->sk);
struct nlattr *tca[TCA_ROOT_MAX + 1];
u32 portid = NETLINK_CB(skb).portid;
int ret = 0, ovr = 0;
u32 flags = 0;
int ret = 0;
if ((n->nlmsg_type != RTM_GETACTION) &&
!netlink_capable(skb, CAP_NET_ADMIN))
@ -1561,8 +1562,8 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n,
* is zero) then just set this
*/
if (n->nlmsg_flags & NLM_F_REPLACE)
ovr = 1;
ret = tcf_action_add(net, tca[TCA_ACT_TAB], n, portid, ovr,
flags = TCA_ACT_FLAGS_REPLACE;
ret = tcf_action_add(net, tca[TCA_ACT_TAB], n, portid, flags,
extack);
break;
case RTM_DELACTION:

4
net/sched/act_bpf.c
View File

@ -275,11 +275,11 @@ static void tcf_bpf_prog_fill_cfg(const struct tcf_bpf *prog,
static int tcf_bpf_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **act,
int replace, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, bpf_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_ACT_BPF_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tcf_bpf_cfg cfg, old;
@ -317,7 +317,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
if (bind)
return 0;
if (!replace) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*act, bind);
return -EEXIST;
}

4
net/sched/act_connmark.c
View File

@ -96,12 +96,12 @@ static const struct nla_policy connmark_policy[TCA_CONNMARK_MAX + 1] = {
static int tcf_connmark_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, connmark_net_id);
struct nlattr *tb[TCA_CONNMARK_MAX + 1];
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct tcf_chain *goto_ch = NULL;
struct tcf_connmark_info *ci;
struct tc_connmark *parm;
@ -144,7 +144,7 @@ static int tcf_connmark_init(struct net *net, struct nlattr *nla,
ci = to_connmark(*a);
if (bind)
return 0;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

7
net/sched/act_csum.c
View File

@ -41,11 +41,12 @@ static unsigned int csum_net_id;
static struct tc_action_ops act_csum_ops;
static int tcf_csum_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a, int ovr,
int bind, bool rtnl_held, struct tcf_proto *tp,
struct nlattr *est, struct tc_action **a,
struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, csum_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct tcf_csum_params *params_new;
struct nlattr *tb[TCA_CSUM_MAX + 1];
struct tcf_chain *goto_ch = NULL;
@ -78,7 +79,7 @@ static int tcf_csum_init(struct net *net, struct nlattr *nla,
} else if (err > 0) {
if (bind)/* dont override defaults */
return 0;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_ct.c
View File

@ -1235,11 +1235,11 @@ static int tcf_ct_fill_params(struct net *net,
static int tcf_ct_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int replace, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, ct_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct tcf_ct_params *params = NULL;
struct nlattr *tb[TCA_CT_MAX + 1];
struct tcf_chain *goto_ch = NULL;
@ -1279,7 +1279,7 @@ static int tcf_ct_init(struct net *net, struct nlattr *nla,
if (bind)
return 0;
if (!replace) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_ctinfo.c
View File

@ -154,11 +154,11 @@ static const struct nla_policy ctinfo_policy[TCA_CTINFO_MAX + 1] = {
static int tcf_ctinfo_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, ctinfo_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
u32 dscpmask = 0, dscpstatemask, index;
struct nlattr *tb[TCA_CTINFO_MAX + 1];
struct tcf_ctinfo_params *cp_new;
@ -221,7 +221,7 @@ static int tcf_ctinfo_init(struct net *net, struct nlattr *nla,
} else if (err > 0) {
if (bind) /* don't override defaults */
return 0;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_gact.c
View File

@ -52,11 +52,11 @@ static const struct nla_policy gact_policy[TCA_GACT_MAX + 1] = {
static int tcf_gact_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, gact_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_GACT_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tc_gact *parm;
@ -109,7 +109,7 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
} else if (err > 0) {
if (bind)/* dont override defaults */
return 0;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_gate.c
View File

@ -295,12 +295,12 @@ static void gate_setup_timer(struct tcf_gate *gact, u64 basetime,
static int tcf_gate_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, gate_net_id);
enum tk_offsets tk_offset = TK_OFFS_TAI;
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_GATE_MAX + 1];
struct tcf_chain *goto_ch = NULL;
u64 cycletime = 0, basetime = 0;
@ -364,7 +364,7 @@ static int tcf_gate_init(struct net *net, struct nlattr *nla,
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

9
net/sched/act_ife.c
View File

@ -479,11 +479,11 @@ static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb,
static int tcf_ife_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, ife_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_IFE_MAX + 1];
struct nlattr *tb2[IFE_META_MAX + 1];
struct tcf_chain *goto_ch = NULL;
@ -532,7 +532,7 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
kfree(p);
return err;
}
err = load_metalist(tb2, rtnl_held);
err = load_metalist(tb2, !(flags & TCA_ACT_FLAGS_NO_RTNL));
if (err) {
kfree(p);
return err;
@ -560,7 +560,7 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
return ret;
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
kfree(p);
return -EEXIST;
@ -600,7 +600,8 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
}
if (tb[TCA_IFE_METALST]) {
err = populate_metalist(ife, tb2, exists, rtnl_held);
err = populate_metalist(ife, tb2, exists,
!(flags & TCA_ACT_FLAGS_NO_RTNL));
if (err)
goto metadata_parse_err;
} else {

21
net/sched/act_ipt.c
View File

@ -94,10 +94,11 @@ static const struct nla_policy ipt_policy[TCA_IPT_MAX + 1] = {
static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
const struct tc_action_ops *ops, int ovr, int bind,
const struct tc_action_ops *ops,
struct tcf_proto *tp, u32 flags)
{
struct tc_action_net *tn = net_generic(net, id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_IPT_MAX + 1];
struct tcf_ipt *ipt;
struct xt_entry_target *td, *t;
@ -154,7 +155,7 @@ static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla,
if (bind)/* dont override defaults */
return 0;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}
@ -201,21 +202,21 @@ err1:
}
static int tcf_ipt_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a, int ovr,
int bind, bool rtnl_held, struct tcf_proto *tp,
struct nlattr *est, struct tc_action **a,
struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack)
{
return __tcf_ipt_init(net, ipt_net_id, nla, est, a, &act_ipt_ops, ovr,
bind, tp, flags);
return __tcf_ipt_init(net, ipt_net_id, nla, est, a, &act_ipt_ops,
tp, flags);
}
static int tcf_xt_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a, int ovr,
int bind, bool unlocked, struct tcf_proto *tp,
struct nlattr *est, struct tc_action **a,
struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack)
{
return __tcf_ipt_init(net, xt_net_id, nla, est, a, &act_xt_ops, ovr,
bind, tp, flags);
return __tcf_ipt_init(net, xt_net_id, nla, est, a, &act_xt_ops,
tp, flags);
}
static int tcf_ipt_act(struct sk_buff *skb, const struct tc_action *a,

4
net/sched/act_mirred.c
View File

@ -91,11 +91,11 @@ static struct tc_action_ops act_mirred_ops;
static int tcf_mirred_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, mirred_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_MIRRED_MAX + 1];
struct tcf_chain *goto_ch = NULL;
bool mac_header_xmit = false;
@ -155,7 +155,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
return ret;
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_mpls.c
View File

@ -152,11 +152,11 @@ static const struct nla_policy mpls_policy[TCA_MPLS_MAX + 1] = {
static int tcf_mpls_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, mpls_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_MPLS_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tcf_mpls_params *p;
@ -255,7 +255,7 @@ static int tcf_mpls_init(struct net *net, struct nlattr *nla,
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

6
net/sched/act_nat.c
View File

@ -34,11 +34,11 @@ static const struct nla_policy nat_policy[TCA_NAT_MAX + 1] = {
};
static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
struct tc_action **a, int ovr, int bind,
bool rtnl_held, struct tcf_proto *tp,
struct tc_action **a, struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, nat_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_NAT_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tc_nat *parm;
@ -70,7 +70,7 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
} else if (err > 0) {
if (bind)
return 0;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_pedit.c
View File

@ -136,11 +136,11 @@ nla_failure:
static int tcf_pedit_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, pedit_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_PEDIT_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tc_pedit_key *keys = NULL;
@ -198,7 +198,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
} else if (err > 0) {
if (bind)
goto out_free;
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
ret = -EEXIST;
goto out_release;
}

4
net/sched/act_police.c
View File

@ -48,11 +48,11 @@ static const struct nla_policy police_policy[TCA_POLICE_MAX + 1] = {
static int tcf_police_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
int ret = 0, tcfp_result = TC_ACT_OK, err, size;
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_POLICE_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tc_police *parm;
@ -97,7 +97,7 @@ static int tcf_police_init(struct net *net, struct nlattr *nla,
}
ret = ACT_P_CREATED;
spin_lock_init(&(to_police(*a)->tcfp_lock));
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

7
net/sched/act_sample.c
View File

@ -34,11 +34,12 @@ static const struct nla_policy sample_policy[TCA_SAMPLE_MAX + 1] = {
};
static int tcf_sample_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a, int ovr,
int bind, bool rtnl_held, struct tcf_proto *tp,
struct nlattr *est, struct tc_action **a,
struct tcf_proto *tp,
u32 flags, struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, sample_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_SAMPLE_MAX + 1];
struct psample_group *psample_group;
u32 psample_group_num, rate, index;
@ -75,7 +76,7 @@ static int tcf_sample_init(struct net *net, struct nlattr *nla,
return ret;
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

4
net/sched/act_simple.c
View File

@ -85,11 +85,11 @@ static const struct nla_policy simple_policy[TCA_DEF_MAX + 1] = {
static int tcf_simp_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, simp_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_DEF_MAX + 1];
struct tcf_chain *goto_ch = NULL;
struct tc_defact *parm;
@ -147,7 +147,7 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
tcf_action_set_ctrlact(*a, parm->action, goto_ch);
ret = ACT_P_CREATED;
} else {
if (!ovr) {
if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
err = -EEXIST;
goto release_idr;
}

4
net/sched/act_skbedit.c
View File

@ -96,11 +96,11 @@ static const struct nla_policy skbedit_policy[TCA_SKBEDIT_MAX + 1] = {
static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 act_flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, skbedit_net_id);
bool bind = act_flags & TCA_ACT_FLAGS_BIND;
struct tcf_skbedit_params *params_new;
struct nlattr *tb[TCA_SKBEDIT_MAX + 1];
struct tcf_chain *goto_ch = NULL;
@ -186,7 +186,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
ret = ACT_P_CREATED;
} else {
d = to_skbedit(*a);
if (!ovr) {
if (!(act_flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

3
net/sched/act_skbmod.c
View File

@ -100,11 +100,12 @@ static const struct nla_policy skbmod_policy[TCA_SKBMOD_MAX + 1] = {
static int tcf_skbmod_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, skbmod_net_id);
bool ovr = flags & TCA_ACT_FLAGS_REPLACE;
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_SKBMOD_MAX + 1];
struct tcf_skbmod_params *p, *p_old;
struct tcf_chain *goto_ch = NULL;

4
net/sched/act_tunnel_key.c
View File

@ -355,11 +355,11 @@ static void tunnel_key_release_params(struct tcf_tunnel_key_params *p)
static int tunnel_key_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 act_flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, tunnel_key_net_id);
bool bind = act_flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_TUNNEL_KEY_MAX + 1];
struct tcf_tunnel_key_params *params_new;
struct metadata_dst *metadata = NULL;
@ -504,7 +504,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(act_flags & TCA_ACT_FLAGS_REPLACE)) {
NL_SET_ERR_MSG(extack, "TC IDR already exists");
ret = -EEXIST;
goto release_tun_meta;

4
net/sched/act_vlan.c
View File

@ -114,11 +114,11 @@ static const struct nla_policy vlan_policy[TCA_VLAN_MAX + 1] = {
static int tcf_vlan_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a,
int ovr, int bind, bool rtnl_held,
struct tcf_proto *tp, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, vlan_net_id);
bool bind = flags & TCA_ACT_FLAGS_BIND;
struct nlattr *tb[TCA_VLAN_MAX + 1];
struct tcf_chain *goto_ch = NULL;
bool push_prio_exists = false;
@ -223,7 +223,7 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
}
ret = ACT_P_CREATED;
} else if (!ovr) {
} else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
tcf_idr_release(*a, bind);
return -EEXIST;
}

28
net/sched/cls_api.c
View File

@ -1949,6 +1949,7 @@ static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
int err;
int tp_created;
bool rtnl_held = false;
u32 flags = 0;
if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN))
return -EPERM;
@ -2112,9 +2113,12 @@ replay:
goto errout;
}
if (!(n->nlmsg_flags & NLM_F_CREATE))
flags |= TCA_ACT_FLAGS_REPLACE;
if (!rtnl_held)
flags |= TCA_ACT_FLAGS_NO_RTNL;
err = tp->ops->change(net, skb, tp, cl, t->tcm_handle, tca, &fh,
n->nlmsg_flags & NLM_F_CREATE ? TCA_ACT_NOREPLACE : TCA_ACT_REPLACE,
rtnl_held, extack);
flags, extack);
if (err == 0) {
tfilter_notify(net, skb, n, tp, block, q, parent, fh,
RTM_NEWTFILTER, false, rtnl_held);
@ -3020,8 +3024,8 @@ void tcf_exts_destroy(struct tcf_exts *exts)
EXPORT_SYMBOL(tcf_exts_destroy);
int tcf_exts_validate(struct net *net, struct tcf_proto *tp, struct nlattr **tb,
struct nlattr *rate_tlv, struct tcf_exts *exts, bool ovr,
bool rtnl_held, struct netlink_ext_ack *extack)
struct nlattr *rate_tlv, struct tcf_exts *exts,
u32 flags, struct netlink_ext_ack *extack)
{
#ifdef CONFIG_NET_CLS_ACT
{
@ -3032,13 +3036,15 @@ int tcf_exts_validate(struct net *net, struct tcf_proto *tp, struct nlattr **tb,
if (exts->police && tb[exts->police]) {
struct tc_action_ops *a_o;
a_o = tc_action_load_ops("police", tb[exts->police], rtnl_held, extack);
a_o = tc_action_load_ops(tb[exts->police], true,
!(flags & TCA_ACT_FLAGS_NO_RTNL),
extack);
if (IS_ERR(a_o))
return PTR_ERR(a_o);
flags |= TCA_ACT_FLAGS_POLICE | TCA_ACT_FLAGS_BIND;
act = tcf_action_init_1(net, tp, tb[exts->police],
rate_tlv, "police", ovr,
TCA_ACT_BIND, a_o, init_res,
rtnl_held, extack);
rate_tlv, a_o, init_res, flags,
extack);
module_put(a_o->owner);
if (IS_ERR(act))
return PTR_ERR(act);
@ -3050,10 +3056,10 @@ int tcf_exts_validate(struct net *net, struct tcf_proto *tp, struct nlattr **tb,
} else if (exts->action && tb[exts->action]) {
int err;
flags |= TCA_ACT_FLAGS_BIND;
err = tcf_action_init(net, tp, tb[exts->action],
rate_tlv, NULL, ovr, TCA_ACT_BIND,
exts->actions, init_res,
&attr_size, rtnl_held, extack);
rate_tlv, exts->actions, init_res,
&attr_size, flags, extack);
if (err < 0)
return err;
exts->nr_actions = err;

10
net/sched/cls_basic.c
View File

@ -145,12 +145,12 @@ static const struct nla_policy basic_policy[TCA_BASIC_MAX + 1] = {
static int basic_set_parms(struct net *net, struct tcf_proto *tp,
struct basic_filter *f, unsigned long base,
struct nlattr **tb,
struct nlattr *est, bool ovr,
struct nlattr *est, u32 flags,
struct netlink_ext_ack *extack)
{
int err;
err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, true, extack);
err = tcf_exts_validate(net, tp, tb, est, &f->exts, flags, extack);
if (err < 0)
return err;
@ -169,8 +169,8 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp,
static int basic_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base, u32 handle,
struct nlattr **tca, void **arg, bool ovr,
bool rtnl_held, struct netlink_ext_ack *extack)
struct nlattr **tca, void **arg,
u32 flags, struct netlink_ext_ack *extack)
{
int err;
struct basic_head *head = rtnl_dereference(tp->root);
@ -216,7 +216,7 @@ static int basic_change(struct net *net, struct sk_buff *in_skb,
goto errout;
}
err = basic_set_parms(net, tp, fnew, base, tb, tca[TCA_RATE], ovr,
err = basic_set_parms(net, tp, fnew, base, tb, tca[TCA_RATE], flags,
extack);
if (err < 0) {
if (!fold)

8
net/sched/cls_bpf.c
View File

@ -404,7 +404,7 @@ static int cls_bpf_prog_from_efd(struct nlattr **tb, struct cls_bpf_prog *prog,
static int cls_bpf_set_parms(struct net *net, struct tcf_proto *tp,
struct cls_bpf_prog *prog, unsigned long base,
struct nlattr **tb, struct nlattr *est, bool ovr,
struct nlattr **tb, struct nlattr *est, u32 flags,
struct netlink_ext_ack *extack)
{
bool is_bpf, is_ebpf, have_exts = false;
@ -416,7 +416,7 @@ static int cls_bpf_set_parms(struct net *net, struct tcf_proto *tp,
if ((!is_bpf && !is_ebpf) || (is_bpf && is_ebpf))
return -EINVAL;
ret = tcf_exts_validate(net, tp, tb, est, &prog->exts, ovr, true,
ret = tcf_exts_validate(net, tp, tb, est, &prog->exts, flags,
extack);
if (ret < 0)
return ret;
@ -455,7 +455,7 @@ static int cls_bpf_set_parms(struct net *net, struct tcf_proto *tp,
static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca,
void **arg, bool ovr, bool rtnl_held,
void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
@ -500,7 +500,7 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
goto errout;
prog->handle = handle;
ret = cls_bpf_set_parms(net, tp, prog, base, tb, tca[TCA_RATE], ovr,
ret = cls_bpf_set_parms(net, tp, prog, base, tb, tca[TCA_RATE], flags,
extack);
if (ret < 0)
goto errout_idr;

6
net/sched/cls_cgroup.c
View File

@ -76,7 +76,7 @@ static void cls_cgroup_destroy_work(struct work_struct *work)
static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca,
void **arg, bool ovr, bool rtnl_held,
void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[TCA_CGROUP_MAX + 1];
@ -108,8 +108,8 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb,
if (err < 0)
goto errout;
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &new->exts, ovr,
true, extack);
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &new->exts, flags,
extack);
if (err < 0)
goto errout;

6
net/sched/cls_flow.c
View File

@ -387,7 +387,7 @@ static void flow_destroy_filter_work(struct work_struct *work)
static int flow_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca,
void **arg, bool ovr, bool rtnl_held,
void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct flow_head *head = rtnl_dereference(tp->root);
@ -442,8 +442,8 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
if (err < 0)
goto err2;
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &fnew->exts, ovr,
true, extack);
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &fnew->exts, flags,
extack);
if (err < 0)
goto err2;

18
net/sched/cls_flower.c
View File

@ -1915,23 +1915,22 @@ errout_cleanup:
static int fl_set_parms(struct net *net, struct tcf_proto *tp,
struct cls_fl_filter *f, struct fl_flow_mask *mask,
unsigned long base, struct nlattr **tb,
struct nlattr *est, bool ovr,
struct fl_flow_tmplt *tmplt, bool rtnl_held,
struct nlattr *est,
struct fl_flow_tmplt *tmplt, u32 flags,
struct netlink_ext_ack *extack)
{
int err;
err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, rtnl_held,
extack);
err = tcf_exts_validate(net, tp, tb, est, &f->exts, flags, extack);
if (err < 0)
return err;
if (tb[TCA_FLOWER_CLASSID]) {
f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
if (!rtnl_held)
if (flags & TCA_ACT_FLAGS_NO_RTNL)
rtnl_lock();
tcf_bind_filter(tp, &f->res, base);
if (!rtnl_held)
if (flags & TCA_ACT_FLAGS_NO_RTNL)
rtnl_unlock();
}
@ -1975,10 +1974,11 @@ static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
static int fl_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca,
void **arg, bool ovr, bool rtnl_held,
void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct cls_fl_head *head = fl_head_dereference(tp);
bool rtnl_held = !(flags & TCA_ACT_FLAGS_NO_RTNL);
struct cls_fl_filter *fold = *arg;
struct cls_fl_filter *fnew;
struct fl_flow_mask *mask;
@ -2034,8 +2034,8 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
}
}
err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
tp->chain->tmplt_priv, rtnl_held, extack);
err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE],
tp->chain->tmplt_priv, flags, extack);
if (err)
goto errout;

13
net/sched/cls_fw.c
View File

@ -198,15 +198,15 @@ static const struct nla_policy fw_policy[TCA_FW_MAX + 1] = {
static int fw_set_parms(struct net *net, struct tcf_proto *tp,
struct fw_filter *f, struct nlattr **tb,
struct nlattr **tca, unsigned long base, bool ovr,
struct nlattr **tca, unsigned long base, u32 flags,
struct netlink_ext_ack *extack)
{
struct fw_head *head = rtnl_dereference(tp->root);
u32 mask;
int err;
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &f->exts, ovr,
true, extack);
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &f->exts, flags,
extack);
if (err < 0)
return err;
@ -237,8 +237,7 @@ static int fw_set_parms(struct net *net, struct tcf_proto *tp,
static int fw_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca, void **arg,
bool ovr, bool rtnl_held,
struct netlink_ext_ack *extack)
u32 flags, struct netlink_ext_ack *extack)
{
struct fw_head *head = rtnl_dereference(tp->root);
struct fw_filter *f = *arg;
@ -277,7 +276,7 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
return err;
}
err = fw_set_parms(net, tp, fnew, tb, tca, base, ovr, extack);
err = fw_set_parms(net, tp, fnew, tb, tca, base, flags, extack);
if (err < 0) {
tcf_exts_destroy(&fnew->exts);
kfree(fnew);
@ -326,7 +325,7 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
f->id = handle;
f->tp = tp;
err = fw_set_parms(net, tp, f, tb, tca, base, ovr, extack);
err = fw_set_parms(net, tp, f, tb, tca, base, flags, extack);
if (err < 0)
goto errout;

17
net/sched/cls_matchall.c
View File

@ -163,13 +163,12 @@ static const struct nla_policy mall_policy[TCA_MATCHALL_MAX + 1] = {
static int mall_set_parms(struct net *net, struct tcf_proto *tp,
struct cls_mall_head *head,
unsigned long base, struct nlattr **tb,
struct nlattr *est, bool ovr,
struct nlattr *est, u32 flags,
struct netlink_ext_ack *extack)
{
int err;
err = tcf_exts_validate(net, tp, tb, est, &head->exts, ovr, true,
extack);
err = tcf_exts_validate(net, tp, tb, est, &head->exts, flags, extack);
if (err < 0)
return err;
@ -183,13 +182,13 @@ static int mall_set_parms(struct net *net, struct tcf_proto *tp,
static int mall_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca,
void **arg, bool ovr, bool rtnl_held,
void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct cls_mall_head *head = rtnl_dereference(tp->root);
struct nlattr *tb[TCA_MATCHALL_MAX + 1];
struct cls_mall_head *new;
u32 flags = 0;
u32 userflags = 0;
int err;
if (!tca[TCA_OPTIONS])
@ -204,8 +203,8 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
return err;
if (tb[TCA_MATCHALL_FLAGS]) {
flags = nla_get_u32(tb[TCA_MATCHALL_FLAGS]);
if (!tc_flags_valid(flags))
userflags = nla_get_u32(tb[TCA_MATCHALL_FLAGS]);
if (!tc_flags_valid(userflags))
return -EINVAL;
}
@ -220,14 +219,14 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
if (!handle)
handle = 1;
new->handle = handle;
new->flags = flags;
new->flags = userflags;
new->pf = alloc_percpu(struct tc_matchall_pcnt);
if (!new->pf) {
err = -ENOMEM;
goto err_alloc_percpu;
}
err = mall_set_parms(net, tp, new, base, tb, tca[TCA_RATE], ovr,
err = mall_set_parms(net, tp, new, base, tb, tca[TCA_RATE], flags,
extack);
if (err)
goto err_set_parms;

10
net/sched/cls_route.c
View File

@ -382,7 +382,7 @@ static int route4_set_parms(struct net *net, struct tcf_proto *tp,
unsigned long base, struct route4_filter *f,
u32 handle, struct route4_head *head,
struct nlattr **tb, struct nlattr *est, int new,
bool ovr, struct netlink_ext_ack *extack)
u32 flags, struct netlink_ext_ack *extack)
{
u32 id = 0, to = 0, nhandle = 0x8000;
struct route4_filter *fp;
@ -390,7 +390,7 @@ static int route4_set_parms(struct net *net, struct tcf_proto *tp,
struct route4_bucket *b;
int err;
err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, true, extack);
err = tcf_exts_validate(net, tp, tb, est, &f->exts, flags, extack);
if (err < 0)
return err;
@ -464,8 +464,8 @@ static int route4_set_parms(struct net *net, struct tcf_proto *tp,
static int route4_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base, u32 handle,
struct nlattr **tca, void **arg, bool ovr,
bool rtnl_held, struct netlink_ext_ack *extack)
struct nlattr **tca, void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct route4_head *head = rtnl_dereference(tp->root);
struct route4_filter __rcu **fp;
@ -510,7 +510,7 @@ static int route4_change(struct net *net, struct sk_buff *in_skb,
}
err = route4_set_parms(net, tp, base, f, handle, head, tb,
tca[TCA_RATE], new, ovr, extack);
tca[TCA_RATE], new, flags, extack);
if (err < 0)
goto errout;

7
net/sched/cls_rsvp.h
View File

@ -470,9 +470,8 @@ static const struct nla_policy rsvp_policy[TCA_RSVP_MAX + 1] = {
static int rsvp_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle,
struct nlattr **tca,
void **arg, bool ovr, bool rtnl_held,
u32 handle, struct nlattr **tca,
void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct rsvp_head *data = rtnl_dereference(tp->root);
@ -499,7 +498,7 @@ static int rsvp_change(struct net *net, struct sk_buff *in_skb,
err = tcf_exts_init(&e, net, TCA_RSVP_ACT, TCA_RSVP_POLICE);
if (err < 0)
return err;
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, ovr, true,
err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, flags,
extack);
if (err < 0)
goto errout2;

10
net/sched/cls_tcindex.c
View File

@ -330,7 +330,7 @@ static int
tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
u32 handle, struct tcindex_data *p,
struct tcindex_filter_result *r, struct nlattr **tb,
struct nlattr *est, bool ovr, struct netlink_ext_ack *extack)
struct nlattr *est, u32 flags, struct netlink_ext_ack *extack)
{
struct tcindex_filter_result new_filter_result, *old_r = r;
struct tcindex_data *cp = NULL, *oldp;
@ -342,7 +342,7 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
err = tcf_exts_init(&e, net, TCA_TCINDEX_ACT, TCA_TCINDEX_POLICE);
if (err < 0)
return err;
err = tcf_exts_validate(net, tp, tb, est, &e, ovr, true, extack);
err = tcf_exts_validate(net, tp, tb, est, &e, flags, extack);
if (err < 0)
goto errout;
@ -529,8 +529,8 @@ errout:
static int
tcindex_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base, u32 handle,
struct nlattr **tca, void **arg, bool ovr,
bool rtnl_held, struct netlink_ext_ack *extack)
struct nlattr **tca, void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct nlattr *opt = tca[TCA_OPTIONS];
struct nlattr *tb[TCA_TCINDEX_MAX + 1];
@ -551,7 +551,7 @@ tcindex_change(struct net *net, struct sk_buff *in_skb,
return err;
return tcindex_set_parms(net, tp, base, handle, p, r, tb,
tca[TCA_RATE], ovr, extack);
tca[TCA_RATE], flags, extack);
}
static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker,

24
net/sched/cls_u32.c
View File

@ -709,12 +709,12 @@ static const struct nla_policy u32_policy[TCA_U32_MAX + 1] = {
static int u32_set_parms(struct net *net, struct tcf_proto *tp,
unsigned long base,
struct tc_u_knode *n, struct nlattr **tb,
struct nlattr *est, bool ovr,
struct nlattr *est, u32 flags,
struct netlink_ext_ack *extack)
{
int err;
err = tcf_exts_validate(net, tp, tb, est, &n->exts, ovr, true, extack);
err = tcf_exts_validate(net, tp, tb, est, &n->exts, flags, extack);
if (err < 0)
return err;
@ -840,7 +840,7 @@ static struct tc_u_knode *u32_init_knode(struct net *net, struct tcf_proto *tp,
static int u32_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base, u32 handle,
struct nlattr **tca, void **arg, bool ovr, bool rtnl_held,
struct nlattr **tca, void **arg, u32 flags,
struct netlink_ext_ack *extack)
{
struct tc_u_common *tp_c = tp->data;
@ -849,7 +849,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
struct tc_u32_sel *s;
struct nlattr *opt = tca[TCA_OPTIONS];
struct nlattr *tb[TCA_U32_MAX + 1];
u32 htid, flags = 0;
u32 htid, userflags = 0;
size_t sel_size;
int err;
@ -868,8 +868,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return err;
if (tb[TCA_U32_FLAGS]) {
flags = nla_get_u32(tb[TCA_U32_FLAGS]);
if (!tc_flags_valid(flags)) {
userflags = nla_get_u32(tb[TCA_U32_FLAGS]);
if (!tc_flags_valid(userflags)) {
NL_SET_ERR_MSG_MOD(extack, "Invalid filter flags");
return -EINVAL;
}
@ -884,7 +884,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return -EINVAL;
}
if ((n->flags ^ flags) &
if ((n->flags ^ userflags) &
~(TCA_CLS_FLAGS_IN_HW | TCA_CLS_FLAGS_NOT_IN_HW)) {
NL_SET_ERR_MSG_MOD(extack, "Key node flags do not match passed flags");
return -EINVAL;
@ -895,7 +895,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return -ENOMEM;
err = u32_set_parms(net, tp, base, new, tb,
tca[TCA_RATE], ovr, extack);
tca[TCA_RATE], flags, extack);
if (err) {
u32_destroy_key(new, false);
@ -955,9 +955,9 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
ht->handle = handle;
ht->prio = tp->prio;
idr_init(&ht->handle_idr);
ht->flags = flags;
ht->flags = userflags;
err = u32_replace_hw_hnode(tp, ht, flags, extack);
err = u32_replace_hw_hnode(tp, ht, userflags, extack);
if (err) {
idr_remove(&tp_c->handle_idr, handle);
kfree(ht);
@ -1038,7 +1038,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
RCU_INIT_POINTER(n->ht_up, ht);
n->handle = handle;
n->fshift = s->hmask ? ffs(ntohl(s->hmask)) - 1 : 0;
n->flags = flags;
n->flags = userflags;
err = tcf_exts_init(&n->exts, net, TCA_U32_ACT, TCA_U32_POLICE);
if (err < 0)
@ -1060,7 +1060,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
}
#endif
err = u32_set_parms(net, tp, base, n, tb, tca[TCA_RATE], ovr,
err = u32_set_parms(net, tp, base, n, tb, tca[TCA_RATE], flags,
extack);
if (err == 0) {
struct tc_u_knode __rcu **ins;