diff options
Diffstat (limited to 'net/sched/sch_api.c')
| -rw-r--r-- | net/sched/sch_api.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 259321be1ad8..f30e3f7ad885 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -29,6 +29,7 @@ #include <linux/hrtimer.h> #include <net/net_namespace.h> +#include <net/sock.h> #include <net/netlink.h> #include <net/pkt_sched.h> @@ -599,6 +600,7 @@ check_loop_fn(struct Qdisc *q, unsigned long cl, struct qdisc_walker *w) static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) { + struct net *net = skb->sk->sk_net; struct tcmsg *tcm = NLMSG_DATA(n); struct rtattr **tca = arg; struct net_device *dev; @@ -607,6 +609,9 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) struct Qdisc *p = NULL; int err; + if (net != &init_net) + return -EINVAL; + if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) return -ENODEV; @@ -660,6 +665,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) { + struct net *net = skb->sk->sk_net; struct tcmsg *tcm; struct rtattr **tca; struct net_device *dev; @@ -667,6 +673,9 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg) struct Qdisc *q, *p; int err; + if (net != &init_net) + return -EINVAL; + replay: /* Reinit, just in case something touches this. */ tcm = NLMSG_DATA(n); @@ -872,11 +881,15 @@ err_out: static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb) { + struct net *net = skb->sk->sk_net; int idx, q_idx; int s_idx, s_q_idx; struct net_device *dev; struct Qdisc *q; + if (net != &init_net) + return 0; + s_idx = cb->args[0]; s_q_idx = q_idx = cb->args[1]; read_lock(&dev_base_lock); @@ -920,6 +933,7 @@ done: static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg) { + struct net *net = skb->sk->sk_net; struct tcmsg *tcm = NLMSG_DATA(n); struct rtattr **tca = arg; struct net_device *dev; @@ -932,6 +946,9 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg) u32 qid = TC_H_MAJ(clid); int err; + if (net != &init_net) + return -EINVAL; + if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) return -ENODEV; @@ -1106,6 +1123,7 @@ static int qdisc_class_dump(struct Qdisc *q, unsigned long cl, struct qdisc_walk static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb) { + struct net *net = skb->sk->sk_net; int t; int s_t; struct net_device *dev; @@ -1113,6 +1131,9 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb) struct tcmsg *tcm = (struct tcmsg*)NLMSG_DATA(cb->nlh); struct qdisc_dump_args arg; + if (net != &init_net) + return 0; + if (cb->nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*tcm))) return 0; if ((dev = dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL) |
