diff options
| author |   Leon Romanovsky <leonro@mellanox.com> | 2017-06-12 16:00:19 +0300 |
|---|---|---|
| committer |   Leon Romanovsky <leon@kernel.org> | 2017-08-10 13:18:45 +0300 |
| commit | e3a2b93dddad315f01a4b67faee738954c084072 (patch) | |
| tree | 6194df37cb3f0e4eda9fbff7e0c7bd4c39733125 | |
| parent | RDMA/iwcm: Remove extra EXPORT_SYMBOLS (diff) | |
| download | wireguard-linux-e3a2b93dddad315f01a4b67faee738954c084072.tar.xz wireguard-linux-e3a2b93dddad315f01a4b67faee738954c084072.zip | |
RDMA/netlink: Add flag to consolidate common handling
Add ability to provide flags to control RDMA netlink callbacks
and convert addr.c and sa_query.c to be first users of such
infrastructure. It allows to move their CAP_NET_ADMIN checks
into netlink core.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
| -rw-r--r-- | drivers/infiniband/core/addr.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/core/device.c | 12 | ||||
| -rw-r--r-- | drivers/infiniband/core/netlink.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/core/sa_query.c | 6 | ||||
| -rw-r--r-- | include/rdma/rdma_netlink.h | 6 |
5 files changed, 22 insertions, 9 deletions
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index 01236cef7bfb..9f3339861ec5 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -134,8 +134,7 @@ int ib_nl_handle_ip_res_resp(struct sk_buff *skb, const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh; if ((nlh->nlmsg_flags & NLM_F_REQUEST) || - !(NETLINK_CB(skb).sk) || - !netlink_capable(skb, CAP_NET_ADMIN)) + !(NETLINK_CB(skb).sk)) return -EPERM; if (ib_nl_is_good_ip_resp(nlh)) diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index d0994cd30eae..7ae29cc49a5e 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -1088,11 +1088,17 @@ EXPORT_SYMBOL(ib_get_net_dev_by_params); static const struct ibnl_client_cbs ibnl_ls_cb_table[] = { [RDMA_NL_LS_OP_RESOLVE] = { - .dump = ib_nl_handle_resolve_resp}, + .dump = ib_nl_handle_resolve_resp, + .flags = RDMA_NL_ADMIN_PERM, + }, [RDMA_NL_LS_OP_SET_TIMEOUT] = { - .dump = ib_nl_handle_set_timeout}, + .dump = ib_nl_handle_set_timeout, + .flags = RDMA_NL_ADMIN_PERM, + }, [RDMA_NL_LS_OP_IP_RESOLVE] = { - .dump = ib_nl_handle_ip_res_resp}, + .dump = ib_nl_handle_ip_res_resp, + .flags = RDMA_NL_ADMIN_PERM, + }, }; static int __init ib_core_init(void) diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c index 826fbd612c7d..c5ee62a24960 100644 --- a/drivers/infiniband/core/netlink.c +++ b/drivers/infiniband/core/netlink.c @@ -171,6 +171,10 @@ static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, if (!is_nl_valid(index, op)) return -EINVAL; + if ((rdma_nl_types[index].cb_table[op].flags & RDMA_NL_ADMIN_PERM) && + !netlink_capable(skb, CAP_NET_ADMIN)) + return -EPERM; + /* * For response or local service set_timeout request, * there is no need to use netlink_dump_start. diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index 70fa4cabe48e..b499f4422f41 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -1033,8 +1033,7 @@ int ib_nl_handle_set_timeout(struct sk_buff *skb, int ret; if (!(nlh->nlmsg_flags & NLM_F_REQUEST) || - !(NETLINK_CB(skb).sk) || - !netlink_capable(skb, CAP_NET_ADMIN)) + !(NETLINK_CB(skb).sk)) return -EPERM; ret = nla_parse(tb, LS_NLA_TYPE_MAX - 1, nlmsg_data(nlh), @@ -1109,8 +1108,7 @@ int ib_nl_handle_resolve_resp(struct sk_buff *skb, int ret; if ((nlh->nlmsg_flags & NLM_F_REQUEST) || - !(NETLINK_CB(skb).sk) || - !netlink_capable(skb, CAP_NET_ADMIN)) + !(NETLINK_CB(skb).sk)) return -EPERM; spin_lock_irqsave(&ib_nl_request_lock, flags); diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h index c124d8e43fc8..6ea36ec45401 100644 --- a/include/rdma/rdma_netlink.h +++ b/include/rdma/rdma_netlink.h @@ -7,6 +7,12 @@ struct ibnl_client_cbs { int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb); + u8 flags; +}; + +enum rdma_nl_flags { + /* Require CAP_NET_ADMIN */ + RDMA_NL_ADMIN_PERM = 1 << 0, }; /** |