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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![David S. Miller](/assets/img/avatar_default.png)
The new route handling in ip_mc_finish_output() from 'net' overlapped with the new support for returning congestion notifications from BPF programs. In order to handle this I had to take the dev_loopback_xmit() calls out of the switch statement. The aquantia driver conflicts were simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
1342 lines
34 KiB
C
1342 lines
34 KiB
C
/*
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* Copyright (c) 2014, Ericsson AB
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "core.h"
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#include "bearer.h"
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#include "link.h"
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#include "name_table.h"
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#include "socket.h"
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#include "node.h"
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#include "net.h"
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#include <net/genetlink.h>
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#include <linux/tipc_config.h>
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/* The legacy API had an artificial message length limit called
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* ULTRA_STRING_MAX_LEN.
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*/
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#define ULTRA_STRING_MAX_LEN 32768
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#define TIPC_SKB_MAX TLV_SPACE(ULTRA_STRING_MAX_LEN)
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#define REPLY_TRUNCATED "<truncated>\n"
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struct tipc_nl_compat_msg {
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u16 cmd;
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int rep_type;
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int rep_size;
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int req_type;
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struct net *net;
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struct sk_buff *rep;
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struct tlv_desc *req;
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struct sock *dst_sk;
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};
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struct tipc_nl_compat_cmd_dump {
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int (*header)(struct tipc_nl_compat_msg *);
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int (*dumpit)(struct sk_buff *, struct netlink_callback *);
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int (*format)(struct tipc_nl_compat_msg *msg, struct nlattr **attrs);
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};
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struct tipc_nl_compat_cmd_doit {
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int (*doit)(struct sk_buff *skb, struct genl_info *info);
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int (*transcode)(struct tipc_nl_compat_cmd_doit *cmd,
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struct sk_buff *skb, struct tipc_nl_compat_msg *msg);
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};
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static int tipc_skb_tailroom(struct sk_buff *skb)
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{
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int tailroom;
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int limit;
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tailroom = skb_tailroom(skb);
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limit = TIPC_SKB_MAX - skb->len;
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if (tailroom < limit)
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return tailroom;
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return limit;
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}
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static inline int TLV_GET_DATA_LEN(struct tlv_desc *tlv)
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{
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return TLV_GET_LEN(tlv) - TLV_SPACE(0);
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}
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static int tipc_add_tlv(struct sk_buff *skb, u16 type, void *data, u16 len)
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{
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struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(skb);
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if (tipc_skb_tailroom(skb) < TLV_SPACE(len))
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return -EMSGSIZE;
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skb_put(skb, TLV_SPACE(len));
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tlv->tlv_type = htons(type);
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tlv->tlv_len = htons(TLV_LENGTH(len));
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if (len && data)
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memcpy(TLV_DATA(tlv), data, len);
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return 0;
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}
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static void tipc_tlv_init(struct sk_buff *skb, u16 type)
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{
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struct tlv_desc *tlv = (struct tlv_desc *)skb->data;
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TLV_SET_LEN(tlv, 0);
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TLV_SET_TYPE(tlv, type);
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skb_put(skb, sizeof(struct tlv_desc));
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}
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static int tipc_tlv_sprintf(struct sk_buff *skb, const char *fmt, ...)
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{
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int n;
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u16 len;
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u32 rem;
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char *buf;
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struct tlv_desc *tlv;
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va_list args;
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rem = tipc_skb_tailroom(skb);
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tlv = (struct tlv_desc *)skb->data;
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len = TLV_GET_LEN(tlv);
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buf = TLV_DATA(tlv) + len;
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va_start(args, fmt);
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n = vscnprintf(buf, rem, fmt, args);
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va_end(args);
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TLV_SET_LEN(tlv, n + len);
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skb_put(skb, n);
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return n;
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}
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static struct sk_buff *tipc_tlv_alloc(int size)
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{
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int hdr_len;
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struct sk_buff *buf;
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size = TLV_SPACE(size);
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hdr_len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
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buf = alloc_skb(hdr_len + size, GFP_KERNEL);
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if (!buf)
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return NULL;
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skb_reserve(buf, hdr_len);
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return buf;
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}
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static struct sk_buff *tipc_get_err_tlv(char *str)
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{
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int str_len = strlen(str) + 1;
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struct sk_buff *buf;
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buf = tipc_tlv_alloc(TLV_SPACE(str_len));
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if (buf)
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tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len);
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return buf;
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}
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static inline bool string_is_valid(char *s, int len)
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{
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return memchr(s, '\0', len) ? true : false;
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}
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static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
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struct tipc_nl_compat_msg *msg,
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struct sk_buff *arg)
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{
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int len = 0;
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int err;
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struct sk_buff *buf;
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struct nlmsghdr *nlmsg;
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struct netlink_callback cb;
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memset(&cb, 0, sizeof(cb));
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cb.nlh = (struct nlmsghdr *)arg->data;
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cb.skb = arg;
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buf = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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buf->sk = msg->dst_sk;
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if (__tipc_dump_start(&cb, msg->net)) {
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kfree_skb(buf);
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return -ENOMEM;
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}
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do {
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int rem;
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len = (*cmd->dumpit)(buf, &cb);
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nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) {
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struct nlattr **attrs;
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err = tipc_nlmsg_parse(nlmsg, &attrs);
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if (err)
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goto err_out;
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err = (*cmd->format)(msg, attrs);
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if (err)
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goto err_out;
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if (tipc_skb_tailroom(msg->rep) <= 1) {
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err = -EMSGSIZE;
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goto err_out;
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}
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}
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skb_reset_tail_pointer(buf);
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buf->len = 0;
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} while (len);
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err = 0;
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err_out:
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tipc_dump_done(&cb);
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kfree_skb(buf);
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if (err == -EMSGSIZE) {
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/* The legacy API only considered messages filling
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* "ULTRA_STRING_MAX_LEN" to be truncated.
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*/
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if ((TIPC_SKB_MAX - msg->rep->len) <= 1) {
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char *tail = skb_tail_pointer(msg->rep);
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if (*tail != '\0')
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sprintf(tail - sizeof(REPLY_TRUNCATED) - 1,
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REPLY_TRUNCATED);
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}
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return 0;
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}
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return err;
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}
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static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
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struct tipc_nl_compat_msg *msg)
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{
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int err;
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struct sk_buff *arg;
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if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type))
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return -EINVAL;
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msg->rep = tipc_tlv_alloc(msg->rep_size);
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if (!msg->rep)
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return -ENOMEM;
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if (msg->rep_type)
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tipc_tlv_init(msg->rep, msg->rep_type);
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if (cmd->header) {
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err = (*cmd->header)(msg);
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if (err) {
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kfree_skb(msg->rep);
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msg->rep = NULL;
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return err;
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}
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}
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arg = nlmsg_new(0, GFP_KERNEL);
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if (!arg) {
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kfree_skb(msg->rep);
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msg->rep = NULL;
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return -ENOMEM;
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}
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err = __tipc_nl_compat_dumpit(cmd, msg, arg);
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if (err) {
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kfree_skb(msg->rep);
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msg->rep = NULL;
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}
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kfree_skb(arg);
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return err;
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}
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static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd,
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struct tipc_nl_compat_msg *msg)
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{
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int err;
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struct sk_buff *doit_buf;
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struct sk_buff *trans_buf;
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struct nlattr **attrbuf;
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struct genl_info info;
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trans_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
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if (!trans_buf)
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return -ENOMEM;
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attrbuf = kmalloc_array(tipc_genl_family.maxattr + 1,
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sizeof(struct nlattr *),
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GFP_KERNEL);
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if (!attrbuf) {
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err = -ENOMEM;
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goto trans_out;
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}
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doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
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if (!doit_buf) {
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err = -ENOMEM;
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goto attrbuf_out;
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}
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memset(&info, 0, sizeof(info));
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info.attrs = attrbuf;
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rtnl_lock();
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err = (*cmd->transcode)(cmd, trans_buf, msg);
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if (err)
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goto doit_out;
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err = nla_parse_deprecated(attrbuf, tipc_genl_family.maxattr,
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(const struct nlattr *)trans_buf->data,
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trans_buf->len, NULL, NULL);
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if (err)
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goto doit_out;
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doit_buf->sk = msg->dst_sk;
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err = (*cmd->doit)(doit_buf, &info);
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doit_out:
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rtnl_unlock();
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kfree_skb(doit_buf);
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attrbuf_out:
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kfree(attrbuf);
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trans_out:
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kfree_skb(trans_buf);
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return err;
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}
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static int tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd,
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struct tipc_nl_compat_msg *msg)
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{
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int err;
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if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type))
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return -EINVAL;
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err = __tipc_nl_compat_doit(cmd, msg);
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if (err)
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return err;
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/* The legacy API considered an empty message a success message */
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msg->rep = tipc_tlv_alloc(0);
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if (!msg->rep)
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return -ENOMEM;
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return 0;
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}
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static int tipc_nl_compat_bearer_dump(struct tipc_nl_compat_msg *msg,
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struct nlattr **attrs)
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{
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struct nlattr *bearer[TIPC_NLA_BEARER_MAX + 1];
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int err;
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if (!attrs[TIPC_NLA_BEARER])
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return -EINVAL;
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err = nla_parse_nested_deprecated(bearer, TIPC_NLA_BEARER_MAX,
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attrs[TIPC_NLA_BEARER], NULL, NULL);
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if (err)
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return err;
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return tipc_add_tlv(msg->rep, TIPC_TLV_BEARER_NAME,
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nla_data(bearer[TIPC_NLA_BEARER_NAME]),
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nla_len(bearer[TIPC_NLA_BEARER_NAME]));
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}
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static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd,
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struct sk_buff *skb,
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struct tipc_nl_compat_msg *msg)
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{
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struct nlattr *prop;
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struct nlattr *bearer;
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struct tipc_bearer_config *b;
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int len;
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b = (struct tipc_bearer_config *)TLV_DATA(msg->req);
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bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER);
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if (!bearer)
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return -EMSGSIZE;
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len = TLV_GET_DATA_LEN(msg->req);
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len -= offsetof(struct tipc_bearer_config, name);
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if (len <= 0)
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return -EINVAL;
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len = min_t(int, len, TIPC_MAX_BEARER_NAME);
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if (!string_is_valid(b->name, len))
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return -EINVAL;
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if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, b->name))
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return -EMSGSIZE;
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if (nla_put_u32(skb, TIPC_NLA_BEARER_DOMAIN, ntohl(b->disc_domain)))
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return -EMSGSIZE;
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if (ntohl(b->priority) <= TIPC_MAX_LINK_PRI) {
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prop = nla_nest_start_noflag(skb, TIPC_NLA_BEARER_PROP);
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if (!prop)
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return -EMSGSIZE;
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if (nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(b->priority)))
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return -EMSGSIZE;
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nla_nest_end(skb, prop);
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}
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nla_nest_end(skb, bearer);
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return 0;
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}
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|
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static int tipc_nl_compat_bearer_disable(struct tipc_nl_compat_cmd_doit *cmd,
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struct sk_buff *skb,
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struct tipc_nl_compat_msg *msg)
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{
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char *name;
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struct nlattr *bearer;
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int len;
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name = (char *)TLV_DATA(msg->req);
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bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER);
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if (!bearer)
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return -EMSGSIZE;
|
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|
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len = TLV_GET_DATA_LEN(msg->req);
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if (len <= 0)
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return -EINVAL;
|
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|
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len = min_t(int, len, TIPC_MAX_BEARER_NAME);
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if (!string_is_valid(name, len))
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return -EINVAL;
|
|
|
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if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, name))
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return -EMSGSIZE;
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|
|
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nla_nest_end(skb, bearer);
|
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|
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return 0;
|
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}
|
|
|
|
static inline u32 perc(u32 count, u32 total)
|
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{
|
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return (count * 100 + (total / 2)) / total;
|
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}
|
|
|
|
static void __fill_bc_link_stat(struct tipc_nl_compat_msg *msg,
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struct nlattr *prop[], struct nlattr *stats[])
|
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{
|
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tipc_tlv_sprintf(msg->rep, " Window:%u packets\n",
|
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nla_get_u32(prop[TIPC_NLA_PROP_WIN]));
|
|
|
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tipc_tlv_sprintf(msg->rep,
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" RX packets:%u fragments:%u/%u bundles:%u/%u\n",
|
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nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
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" TX packets:%u fragments:%u/%u bundles:%u/%u\n",
|
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nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED]));
|
|
|
|
tipc_tlv_sprintf(msg->rep, " RX naks:%u defs:%u dups:%u\n",
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nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]),
|
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nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES]));
|
|
|
|
tipc_tlv_sprintf(msg->rep, " TX naks:%u acks:%u dups:%u\n",
|
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nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" Congestion link:%u Send queue max:%u avg:%u",
|
|
nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE]));
|
|
}
|
|
|
|
static int tipc_nl_compat_link_stat_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
char *name;
|
|
struct nlattr *link[TIPC_NLA_LINK_MAX + 1];
|
|
struct nlattr *prop[TIPC_NLA_PROP_MAX + 1];
|
|
struct nlattr *stats[TIPC_NLA_STATS_MAX + 1];
|
|
int err;
|
|
int len;
|
|
|
|
if (!attrs[TIPC_NLA_LINK])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(link, TIPC_NLA_LINK_MAX,
|
|
attrs[TIPC_NLA_LINK], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!link[TIPC_NLA_LINK_PROP])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(prop, TIPC_NLA_PROP_MAX,
|
|
link[TIPC_NLA_LINK_PROP], NULL,
|
|
NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!link[TIPC_NLA_LINK_STATS])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(stats, TIPC_NLA_STATS_MAX,
|
|
link[TIPC_NLA_LINK_STATS], NULL,
|
|
NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
name = (char *)TLV_DATA(msg->req);
|
|
|
|
len = TLV_GET_DATA_LEN(msg->req);
|
|
if (len <= 0)
|
|
return -EINVAL;
|
|
|
|
len = min_t(int, len, TIPC_MAX_BEARER_NAME);
|
|
if (!string_is_valid(name, len))
|
|
return -EINVAL;
|
|
|
|
if (strcmp(name, nla_data(link[TIPC_NLA_LINK_NAME])) != 0)
|
|
return 0;
|
|
|
|
tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n",
|
|
nla_data(link[TIPC_NLA_LINK_NAME]));
|
|
|
|
if (link[TIPC_NLA_LINK_BROADCAST]) {
|
|
__fill_bc_link_stat(msg, prop, stats);
|
|
return 0;
|
|
}
|
|
|
|
if (link[TIPC_NLA_LINK_ACTIVE])
|
|
tipc_tlv_sprintf(msg->rep, " ACTIVE");
|
|
else if (link[TIPC_NLA_LINK_UP])
|
|
tipc_tlv_sprintf(msg->rep, " STANDBY");
|
|
else
|
|
tipc_tlv_sprintf(msg->rep, " DEFUNCT");
|
|
|
|
tipc_tlv_sprintf(msg->rep, " MTU:%u Priority:%u",
|
|
nla_get_u32(link[TIPC_NLA_LINK_MTU]),
|
|
nla_get_u32(prop[TIPC_NLA_PROP_PRIO]));
|
|
|
|
tipc_tlv_sprintf(msg->rep, " Tolerance:%u ms Window:%u packets\n",
|
|
nla_get_u32(prop[TIPC_NLA_PROP_TOL]),
|
|
nla_get_u32(prop[TIPC_NLA_PROP_WIN]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" RX packets:%u fragments:%u/%u bundles:%u/%u\n",
|
|
nla_get_u32(link[TIPC_NLA_LINK_RX]) -
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" TX packets:%u fragments:%u/%u bundles:%u/%u\n",
|
|
nla_get_u32(link[TIPC_NLA_LINK_TX]) -
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" TX profile sample:%u packets average:%u octets\n",
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) /
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% ",
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])),
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])),
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])),
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])));
|
|
|
|
tipc_tlv_sprintf(msg->rep, "-16384:%u%% -32768:%u%% -66000:%u%%\n",
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])),
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])),
|
|
perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" RX states:%u probes:%u naks:%u defs:%u dups:%u\n",
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_STATES]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" TX states:%u probes:%u naks:%u acks:%u dups:%u\n",
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_STATES]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED]));
|
|
|
|
tipc_tlv_sprintf(msg->rep,
|
|
" Congestion link:%u Send queue max:%u avg:%u",
|
|
nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]),
|
|
nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE]));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
struct nlattr *link[TIPC_NLA_LINK_MAX + 1];
|
|
struct tipc_link_info link_info;
|
|
int err;
|
|
|
|
if (!attrs[TIPC_NLA_LINK])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(link, TIPC_NLA_LINK_MAX,
|
|
attrs[TIPC_NLA_LINK], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
link_info.dest = nla_get_flag(link[TIPC_NLA_LINK_DEST]);
|
|
link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP]));
|
|
nla_strlcpy(link_info.str, link[TIPC_NLA_LINK_NAME],
|
|
TIPC_MAX_LINK_NAME);
|
|
|
|
return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO,
|
|
&link_info, sizeof(link_info));
|
|
}
|
|
|
|
static int __tipc_add_link_prop(struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg,
|
|
struct tipc_link_config *lc)
|
|
{
|
|
switch (msg->cmd) {
|
|
case TIPC_CMD_SET_LINK_PRI:
|
|
return nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(lc->value));
|
|
case TIPC_CMD_SET_LINK_TOL:
|
|
return nla_put_u32(skb, TIPC_NLA_PROP_TOL, ntohl(lc->value));
|
|
case TIPC_CMD_SET_LINK_WINDOW:
|
|
return nla_put_u32(skb, TIPC_NLA_PROP_WIN, ntohl(lc->value));
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int tipc_nl_compat_media_set(struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg)
|
|
{
|
|
struct nlattr *prop;
|
|
struct nlattr *media;
|
|
struct tipc_link_config *lc;
|
|
|
|
lc = (struct tipc_link_config *)TLV_DATA(msg->req);
|
|
|
|
media = nla_nest_start_noflag(skb, TIPC_NLA_MEDIA);
|
|
if (!media)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_string(skb, TIPC_NLA_MEDIA_NAME, lc->name))
|
|
return -EMSGSIZE;
|
|
|
|
prop = nla_nest_start_noflag(skb, TIPC_NLA_MEDIA_PROP);
|
|
if (!prop)
|
|
return -EMSGSIZE;
|
|
|
|
__tipc_add_link_prop(skb, msg, lc);
|
|
nla_nest_end(skb, prop);
|
|
nla_nest_end(skb, media);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_bearer_set(struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg)
|
|
{
|
|
struct nlattr *prop;
|
|
struct nlattr *bearer;
|
|
struct tipc_link_config *lc;
|
|
|
|
lc = (struct tipc_link_config *)TLV_DATA(msg->req);
|
|
|
|
bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER);
|
|
if (!bearer)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, lc->name))
|
|
return -EMSGSIZE;
|
|
|
|
prop = nla_nest_start_noflag(skb, TIPC_NLA_BEARER_PROP);
|
|
if (!prop)
|
|
return -EMSGSIZE;
|
|
|
|
__tipc_add_link_prop(skb, msg, lc);
|
|
nla_nest_end(skb, prop);
|
|
nla_nest_end(skb, bearer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __tipc_nl_compat_link_set(struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg)
|
|
{
|
|
struct nlattr *prop;
|
|
struct nlattr *link;
|
|
struct tipc_link_config *lc;
|
|
|
|
lc = (struct tipc_link_config *)TLV_DATA(msg->req);
|
|
|
|
link = nla_nest_start_noflag(skb, TIPC_NLA_LINK);
|
|
if (!link)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_string(skb, TIPC_NLA_LINK_NAME, lc->name))
|
|
return -EMSGSIZE;
|
|
|
|
prop = nla_nest_start_noflag(skb, TIPC_NLA_LINK_PROP);
|
|
if (!prop)
|
|
return -EMSGSIZE;
|
|
|
|
__tipc_add_link_prop(skb, msg, lc);
|
|
nla_nest_end(skb, prop);
|
|
nla_nest_end(skb, link);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd,
|
|
struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg)
|
|
{
|
|
struct tipc_link_config *lc;
|
|
struct tipc_bearer *bearer;
|
|
struct tipc_media *media;
|
|
int len;
|
|
|
|
lc = (struct tipc_link_config *)TLV_DATA(msg->req);
|
|
|
|
len = TLV_GET_DATA_LEN(msg->req);
|
|
len -= offsetof(struct tipc_link_config, name);
|
|
if (len <= 0)
|
|
return -EINVAL;
|
|
|
|
len = min_t(int, len, TIPC_MAX_LINK_NAME);
|
|
if (!string_is_valid(lc->name, len))
|
|
return -EINVAL;
|
|
|
|
media = tipc_media_find(lc->name);
|
|
if (media) {
|
|
cmd->doit = &__tipc_nl_media_set;
|
|
return tipc_nl_compat_media_set(skb, msg);
|
|
}
|
|
|
|
bearer = tipc_bearer_find(msg->net, lc->name);
|
|
if (bearer) {
|
|
cmd->doit = &__tipc_nl_bearer_set;
|
|
return tipc_nl_compat_bearer_set(skb, msg);
|
|
}
|
|
|
|
return __tipc_nl_compat_link_set(skb, msg);
|
|
}
|
|
|
|
static int tipc_nl_compat_link_reset_stats(struct tipc_nl_compat_cmd_doit *cmd,
|
|
struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg)
|
|
{
|
|
char *name;
|
|
struct nlattr *link;
|
|
int len;
|
|
|
|
name = (char *)TLV_DATA(msg->req);
|
|
|
|
link = nla_nest_start_noflag(skb, TIPC_NLA_LINK);
|
|
if (!link)
|
|
return -EMSGSIZE;
|
|
|
|
len = TLV_GET_DATA_LEN(msg->req);
|
|
if (len <= 0)
|
|
return -EINVAL;
|
|
|
|
len = min_t(int, len, TIPC_MAX_BEARER_NAME);
|
|
if (!string_is_valid(name, len))
|
|
return -EINVAL;
|
|
|
|
if (nla_put_string(skb, TIPC_NLA_LINK_NAME, name))
|
|
return -EMSGSIZE;
|
|
|
|
nla_nest_end(skb, link);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_name_table_dump_header(struct tipc_nl_compat_msg *msg)
|
|
{
|
|
int i;
|
|
u32 depth;
|
|
struct tipc_name_table_query *ntq;
|
|
static const char * const header[] = {
|
|
"Type ",
|
|
"Lower Upper ",
|
|
"Port Identity ",
|
|
"Publication Scope"
|
|
};
|
|
|
|
ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req);
|
|
if (TLV_GET_DATA_LEN(msg->req) < sizeof(struct tipc_name_table_query))
|
|
return -EINVAL;
|
|
|
|
depth = ntohl(ntq->depth);
|
|
|
|
if (depth > 4)
|
|
depth = 4;
|
|
for (i = 0; i < depth; i++)
|
|
tipc_tlv_sprintf(msg->rep, header[i]);
|
|
tipc_tlv_sprintf(msg->rep, "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_name_table_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
char port_str[27];
|
|
struct tipc_name_table_query *ntq;
|
|
struct nlattr *nt[TIPC_NLA_NAME_TABLE_MAX + 1];
|
|
struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1];
|
|
u32 node, depth, type, lowbound, upbound;
|
|
static const char * const scope_str[] = {"", " zone", " cluster",
|
|
" node"};
|
|
int err;
|
|
|
|
if (!attrs[TIPC_NLA_NAME_TABLE])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(nt, TIPC_NLA_NAME_TABLE_MAX,
|
|
attrs[TIPC_NLA_NAME_TABLE], NULL,
|
|
NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!nt[TIPC_NLA_NAME_TABLE_PUBL])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(publ, TIPC_NLA_PUBL_MAX,
|
|
nt[TIPC_NLA_NAME_TABLE_PUBL], NULL,
|
|
NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req);
|
|
|
|
depth = ntohl(ntq->depth);
|
|
type = ntohl(ntq->type);
|
|
lowbound = ntohl(ntq->lowbound);
|
|
upbound = ntohl(ntq->upbound);
|
|
|
|
if (!(depth & TIPC_NTQ_ALLTYPES) &&
|
|
(type != nla_get_u32(publ[TIPC_NLA_PUBL_TYPE])))
|
|
return 0;
|
|
if (lowbound && (lowbound > nla_get_u32(publ[TIPC_NLA_PUBL_UPPER])))
|
|
return 0;
|
|
if (upbound && (upbound < nla_get_u32(publ[TIPC_NLA_PUBL_LOWER])))
|
|
return 0;
|
|
|
|
tipc_tlv_sprintf(msg->rep, "%-10u ",
|
|
nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]));
|
|
|
|
if (depth == 1)
|
|
goto out;
|
|
|
|
tipc_tlv_sprintf(msg->rep, "%-10u %-10u ",
|
|
nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]),
|
|
nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]));
|
|
|
|
if (depth == 2)
|
|
goto out;
|
|
|
|
node = nla_get_u32(publ[TIPC_NLA_PUBL_NODE]);
|
|
sprintf(port_str, "<%u.%u.%u:%u>", tipc_zone(node), tipc_cluster(node),
|
|
tipc_node(node), nla_get_u32(publ[TIPC_NLA_PUBL_REF]));
|
|
tipc_tlv_sprintf(msg->rep, "%-26s ", port_str);
|
|
|
|
if (depth == 3)
|
|
goto out;
|
|
|
|
tipc_tlv_sprintf(msg->rep, "%-10u %s",
|
|
nla_get_u32(publ[TIPC_NLA_PUBL_KEY]),
|
|
scope_str[nla_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]);
|
|
out:
|
|
tipc_tlv_sprintf(msg->rep, "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
u32 type, lower, upper;
|
|
struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1];
|
|
int err;
|
|
|
|
if (!attrs[TIPC_NLA_PUBL])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(publ, TIPC_NLA_PUBL_MAX,
|
|
attrs[TIPC_NLA_PUBL], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
type = nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]);
|
|
lower = nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]);
|
|
upper = nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]);
|
|
|
|
if (lower == upper)
|
|
tipc_tlv_sprintf(msg->rep, " {%u,%u}", type, lower);
|
|
else
|
|
tipc_tlv_sprintf(msg->rep, " {%u,%u,%u}", type, lower, upper);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock)
|
|
{
|
|
int err;
|
|
void *hdr;
|
|
struct nlattr *nest;
|
|
struct sk_buff *args;
|
|
struct tipc_nl_compat_cmd_dump dump;
|
|
|
|
args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
|
|
if (!args)
|
|
return -ENOMEM;
|
|
|
|
hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI,
|
|
TIPC_NL_PUBL_GET);
|
|
if (!hdr) {
|
|
kfree_skb(args);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
nest = nla_nest_start_noflag(args, TIPC_NLA_SOCK);
|
|
if (!nest) {
|
|
kfree_skb(args);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) {
|
|
kfree_skb(args);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
nla_nest_end(args, nest);
|
|
genlmsg_end(args, hdr);
|
|
|
|
dump.dumpit = tipc_nl_publ_dump;
|
|
dump.format = __tipc_nl_compat_publ_dump;
|
|
|
|
err = __tipc_nl_compat_dumpit(&dump, msg, args);
|
|
|
|
kfree_skb(args);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
int err;
|
|
u32 sock_ref;
|
|
struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1];
|
|
|
|
if (!attrs[TIPC_NLA_SOCK])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(sock, TIPC_NLA_SOCK_MAX,
|
|
attrs[TIPC_NLA_SOCK], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
sock_ref = nla_get_u32(sock[TIPC_NLA_SOCK_REF]);
|
|
tipc_tlv_sprintf(msg->rep, "%u:", sock_ref);
|
|
|
|
if (sock[TIPC_NLA_SOCK_CON]) {
|
|
u32 node;
|
|
struct nlattr *con[TIPC_NLA_CON_MAX + 1];
|
|
|
|
err = nla_parse_nested_deprecated(con, TIPC_NLA_CON_MAX,
|
|
sock[TIPC_NLA_SOCK_CON],
|
|
NULL, NULL);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
node = nla_get_u32(con[TIPC_NLA_CON_NODE]);
|
|
tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>",
|
|
tipc_zone(node),
|
|
tipc_cluster(node),
|
|
tipc_node(node),
|
|
nla_get_u32(con[TIPC_NLA_CON_SOCK]));
|
|
|
|
if (con[TIPC_NLA_CON_FLAG])
|
|
tipc_tlv_sprintf(msg->rep, " via {%u,%u}\n",
|
|
nla_get_u32(con[TIPC_NLA_CON_TYPE]),
|
|
nla_get_u32(con[TIPC_NLA_CON_INST]));
|
|
else
|
|
tipc_tlv_sprintf(msg->rep, "\n");
|
|
} else if (sock[TIPC_NLA_SOCK_HAS_PUBL]) {
|
|
tipc_tlv_sprintf(msg->rep, " bound to");
|
|
|
|
err = tipc_nl_compat_publ_dump(msg, sock_ref);
|
|
if (err)
|
|
return err;
|
|
}
|
|
tipc_tlv_sprintf(msg->rep, "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
struct nlattr *media[TIPC_NLA_MEDIA_MAX + 1];
|
|
int err;
|
|
|
|
if (!attrs[TIPC_NLA_MEDIA])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(media, TIPC_NLA_MEDIA_MAX,
|
|
attrs[TIPC_NLA_MEDIA], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
return tipc_add_tlv(msg->rep, TIPC_TLV_MEDIA_NAME,
|
|
nla_data(media[TIPC_NLA_MEDIA_NAME]),
|
|
nla_len(media[TIPC_NLA_MEDIA_NAME]));
|
|
}
|
|
|
|
static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
struct tipc_node_info node_info;
|
|
struct nlattr *node[TIPC_NLA_NODE_MAX + 1];
|
|
int err;
|
|
|
|
if (!attrs[TIPC_NLA_NODE])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(node, TIPC_NLA_NODE_MAX,
|
|
attrs[TIPC_NLA_NODE], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR]));
|
|
node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP]));
|
|
|
|
return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info,
|
|
sizeof(node_info));
|
|
}
|
|
|
|
static int tipc_nl_compat_net_set(struct tipc_nl_compat_cmd_doit *cmd,
|
|
struct sk_buff *skb,
|
|
struct tipc_nl_compat_msg *msg)
|
|
{
|
|
u32 val;
|
|
struct nlattr *net;
|
|
|
|
val = ntohl(*(__be32 *)TLV_DATA(msg->req));
|
|
|
|
net = nla_nest_start_noflag(skb, TIPC_NLA_NET);
|
|
if (!net)
|
|
return -EMSGSIZE;
|
|
|
|
if (msg->cmd == TIPC_CMD_SET_NODE_ADDR) {
|
|
if (nla_put_u32(skb, TIPC_NLA_NET_ADDR, val))
|
|
return -EMSGSIZE;
|
|
} else if (msg->cmd == TIPC_CMD_SET_NETID) {
|
|
if (nla_put_u32(skb, TIPC_NLA_NET_ID, val))
|
|
return -EMSGSIZE;
|
|
}
|
|
nla_nest_end(skb, net);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_net_dump(struct tipc_nl_compat_msg *msg,
|
|
struct nlattr **attrs)
|
|
{
|
|
__be32 id;
|
|
struct nlattr *net[TIPC_NLA_NET_MAX + 1];
|
|
int err;
|
|
|
|
if (!attrs[TIPC_NLA_NET])
|
|
return -EINVAL;
|
|
|
|
err = nla_parse_nested_deprecated(net, TIPC_NLA_NET_MAX,
|
|
attrs[TIPC_NLA_NET], NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
|
|
id = htonl(nla_get_u32(net[TIPC_NLA_NET_ID]));
|
|
|
|
return tipc_add_tlv(msg->rep, TIPC_TLV_UNSIGNED, &id, sizeof(id));
|
|
}
|
|
|
|
static int tipc_cmd_show_stats_compat(struct tipc_nl_compat_msg *msg)
|
|
{
|
|
msg->rep = tipc_tlv_alloc(ULTRA_STRING_MAX_LEN);
|
|
if (!msg->rep)
|
|
return -ENOMEM;
|
|
|
|
tipc_tlv_init(msg->rep, TIPC_TLV_ULTRA_STRING);
|
|
tipc_tlv_sprintf(msg->rep, "TIPC version " TIPC_MOD_VER "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg)
|
|
{
|
|
struct tipc_nl_compat_cmd_dump dump;
|
|
struct tipc_nl_compat_cmd_doit doit;
|
|
|
|
memset(&dump, 0, sizeof(dump));
|
|
memset(&doit, 0, sizeof(doit));
|
|
|
|
switch (msg->cmd) {
|
|
case TIPC_CMD_NOOP:
|
|
msg->rep = tipc_tlv_alloc(0);
|
|
if (!msg->rep)
|
|
return -ENOMEM;
|
|
return 0;
|
|
case TIPC_CMD_GET_BEARER_NAMES:
|
|
msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME);
|
|
dump.dumpit = tipc_nl_bearer_dump;
|
|
dump.format = tipc_nl_compat_bearer_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_ENABLE_BEARER:
|
|
msg->req_type = TIPC_TLV_BEARER_CONFIG;
|
|
doit.doit = __tipc_nl_bearer_enable;
|
|
doit.transcode = tipc_nl_compat_bearer_enable;
|
|
return tipc_nl_compat_doit(&doit, msg);
|
|
case TIPC_CMD_DISABLE_BEARER:
|
|
msg->req_type = TIPC_TLV_BEARER_NAME;
|
|
doit.doit = __tipc_nl_bearer_disable;
|
|
doit.transcode = tipc_nl_compat_bearer_disable;
|
|
return tipc_nl_compat_doit(&doit, msg);
|
|
case TIPC_CMD_SHOW_LINK_STATS:
|
|
msg->req_type = TIPC_TLV_LINK_NAME;
|
|
msg->rep_size = ULTRA_STRING_MAX_LEN;
|
|
msg->rep_type = TIPC_TLV_ULTRA_STRING;
|
|
dump.dumpit = tipc_nl_node_dump_link;
|
|
dump.format = tipc_nl_compat_link_stat_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_GET_LINKS:
|
|
msg->req_type = TIPC_TLV_NET_ADDR;
|
|
msg->rep_size = ULTRA_STRING_MAX_LEN;
|
|
dump.dumpit = tipc_nl_node_dump_link;
|
|
dump.format = tipc_nl_compat_link_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_SET_LINK_TOL:
|
|
case TIPC_CMD_SET_LINK_PRI:
|
|
case TIPC_CMD_SET_LINK_WINDOW:
|
|
msg->req_type = TIPC_TLV_LINK_CONFIG;
|
|
doit.doit = tipc_nl_node_set_link;
|
|
doit.transcode = tipc_nl_compat_link_set;
|
|
return tipc_nl_compat_doit(&doit, msg);
|
|
case TIPC_CMD_RESET_LINK_STATS:
|
|
msg->req_type = TIPC_TLV_LINK_NAME;
|
|
doit.doit = tipc_nl_node_reset_link_stats;
|
|
doit.transcode = tipc_nl_compat_link_reset_stats;
|
|
return tipc_nl_compat_doit(&doit, msg);
|
|
case TIPC_CMD_SHOW_NAME_TABLE:
|
|
msg->req_type = TIPC_TLV_NAME_TBL_QUERY;
|
|
msg->rep_size = ULTRA_STRING_MAX_LEN;
|
|
msg->rep_type = TIPC_TLV_ULTRA_STRING;
|
|
dump.header = tipc_nl_compat_name_table_dump_header;
|
|
dump.dumpit = tipc_nl_name_table_dump;
|
|
dump.format = tipc_nl_compat_name_table_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_SHOW_PORTS:
|
|
msg->rep_size = ULTRA_STRING_MAX_LEN;
|
|
msg->rep_type = TIPC_TLV_ULTRA_STRING;
|
|
dump.dumpit = tipc_nl_sk_dump;
|
|
dump.format = tipc_nl_compat_sk_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_GET_MEDIA_NAMES:
|
|
msg->rep_size = MAX_MEDIA * TLV_SPACE(TIPC_MAX_MEDIA_NAME);
|
|
dump.dumpit = tipc_nl_media_dump;
|
|
dump.format = tipc_nl_compat_media_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_GET_NODES:
|
|
msg->rep_size = ULTRA_STRING_MAX_LEN;
|
|
dump.dumpit = tipc_nl_node_dump;
|
|
dump.format = tipc_nl_compat_node_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_SET_NODE_ADDR:
|
|
msg->req_type = TIPC_TLV_NET_ADDR;
|
|
doit.doit = __tipc_nl_net_set;
|
|
doit.transcode = tipc_nl_compat_net_set;
|
|
return tipc_nl_compat_doit(&doit, msg);
|
|
case TIPC_CMD_SET_NETID:
|
|
msg->req_type = TIPC_TLV_UNSIGNED;
|
|
doit.doit = __tipc_nl_net_set;
|
|
doit.transcode = tipc_nl_compat_net_set;
|
|
return tipc_nl_compat_doit(&doit, msg);
|
|
case TIPC_CMD_GET_NETID:
|
|
msg->rep_size = sizeof(u32);
|
|
dump.dumpit = tipc_nl_net_dump;
|
|
dump.format = tipc_nl_compat_net_dump;
|
|
return tipc_nl_compat_dumpit(&dump, msg);
|
|
case TIPC_CMD_SHOW_STATS:
|
|
return tipc_cmd_show_stats_compat(msg);
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int tipc_nl_compat_recv(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
int err;
|
|
int len;
|
|
struct tipc_nl_compat_msg msg;
|
|
struct nlmsghdr *req_nlh;
|
|
struct nlmsghdr *rep_nlh;
|
|
struct tipc_genlmsghdr *req_userhdr = info->userhdr;
|
|
|
|
memset(&msg, 0, sizeof(msg));
|
|
|
|
req_nlh = (struct nlmsghdr *)skb->data;
|
|
msg.req = nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN;
|
|
msg.cmd = req_userhdr->cmd;
|
|
msg.net = genl_info_net(info);
|
|
msg.dst_sk = skb->sk;
|
|
|
|
if ((msg.cmd & 0xC000) && (!netlink_net_capable(skb, CAP_NET_ADMIN))) {
|
|
msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_NET_ADMIN);
|
|
err = -EACCES;
|
|
goto send;
|
|
}
|
|
|
|
len = nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN);
|
|
if (!len || !TLV_OK(msg.req, len)) {
|
|
msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED);
|
|
err = -EOPNOTSUPP;
|
|
goto send;
|
|
}
|
|
|
|
err = tipc_nl_compat_handle(&msg);
|
|
if ((err == -EOPNOTSUPP) || (err == -EPERM))
|
|
msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED);
|
|
else if (err == -EINVAL)
|
|
msg.rep = tipc_get_err_tlv(TIPC_CFG_TLV_ERROR);
|
|
send:
|
|
if (!msg.rep)
|
|
return err;
|
|
|
|
len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
|
|
skb_push(msg.rep, len);
|
|
rep_nlh = nlmsg_hdr(msg.rep);
|
|
memcpy(rep_nlh, info->nlhdr, len);
|
|
rep_nlh->nlmsg_len = msg.rep->len;
|
|
genlmsg_unicast(msg.net, msg.rep, NETLINK_CB(skb).portid);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const struct genl_ops tipc_genl_compat_ops[] = {
|
|
{
|
|
.cmd = TIPC_GENL_CMD,
|
|
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
|
|
.doit = tipc_nl_compat_recv,
|
|
},
|
|
};
|
|
|
|
static struct genl_family tipc_genl_compat_family __ro_after_init = {
|
|
.name = TIPC_GENL_NAME,
|
|
.version = TIPC_GENL_VERSION,
|
|
.hdrsize = TIPC_GENL_HDRLEN,
|
|
.maxattr = 0,
|
|
.netnsok = true,
|
|
.module = THIS_MODULE,
|
|
.ops = tipc_genl_compat_ops,
|
|
.n_ops = ARRAY_SIZE(tipc_genl_compat_ops),
|
|
};
|
|
|
|
int __init tipc_netlink_compat_start(void)
|
|
{
|
|
int res;
|
|
|
|
res = genl_register_family(&tipc_genl_compat_family);
|
|
if (res) {
|
|
pr_err("Failed to register legacy compat interface\n");
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void tipc_netlink_compat_stop(void)
|
|
{
|
|
genl_unregister_family(&tipc_genl_compat_family);
|
|
}
|