From: Namjae Jeon linkinjeon@kernel.org
mainline inclusion from mainline-5.17-rc1 commit 71cd9cb680cb5d536c0dcbddb1c1d0010d79b214 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I60T7G CVE: NA
Reference: https://git.kernel.org/torvalds/linux/c/71cd9cb680cb
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Set ipv4 and ipv6 address in FSCTL_QUERY_NETWORK_INTERFACE_INFO.
Signed-off-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Jason Yan yanaijie@huawei.com Signed-off-by: Zhong Jinghua zhongjinghua@huawei.com --- fs/ksmbd/smb2pdu.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index c4df4edf879d..c7b7d7f841e7 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -7189,15 +7189,10 @@ static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, struct sockaddr_storage_rsp *sockaddr_storage; unsigned int flags; unsigned long long speed; - struct sockaddr_in6 *csin6 = (struct sockaddr_in6 *)&conn->peer_addr;
rtnl_lock(); for_each_netdev(&init_net, netdev) { - if (out_buf_len < - nbytes + sizeof(struct network_interface_info_ioctl_rsp)) { - rtnl_unlock(); - return -ENOSPC; - } + bool ipv4_set = false;
if (netdev->type == ARPHRD_LOOPBACK) continue; @@ -7205,6 +7200,12 @@ static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, flags = dev_get_flags(netdev); if (!(flags & IFF_RUNNING)) continue; +ipv6_retry: + if (out_buf_len < + nbytes + sizeof(struct network_interface_info_ioctl_rsp)) { + rtnl_unlock(); + return -ENOSPC; + }
nii_rsp = (struct network_interface_info_ioctl_rsp *) &rsp->Buffer[nbytes]; @@ -7237,8 +7238,7 @@ static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, nii_rsp->SockAddr_Storage; memset(sockaddr_storage, 0, 128);
- if (conn->peer_addr.ss_family == PF_INET || - ipv6_addr_v4mapped(&csin6->sin6_addr)) { + if (!ipv4_set) { struct in_device *idev;
sockaddr_storage->Family = cpu_to_le16(INTERNETWORK); @@ -7249,6 +7249,9 @@ static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, continue; sockaddr_storage->addr4.IPv4address = idev_ipv4_address(idev); + nbytes += sizeof(struct network_interface_info_ioctl_rsp); + ipv4_set = true; + goto ipv6_retry; } else { struct inet6_dev *idev6; struct inet6_ifaddr *ifa; @@ -7270,9 +7273,8 @@ static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, break; } sockaddr_storage->addr6.ScopeId = 0; + nbytes += sizeof(struct network_interface_info_ioctl_rsp); } - - nbytes += sizeof(struct network_interface_info_ioctl_rsp); } rtnl_unlock();