devinet.c (c33078e3dfb194489b2f0875f078dc76647cfecf) devinet.c (addd383f5a0ba9bf8336be3cc8b7a2916c08a77a)
1/*
2 * NET3 IP device support routines.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

--- 2072 unchanged lines hidden (view full) ---

2081 err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);
2082errout:
2083 return err;
2084}
2085
2086static int inet_netconf_dump_devconf(struct sk_buff *skb,
2087 struct netlink_callback *cb)
2088{
1/*
2 * NET3 IP device support routines.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

--- 2072 unchanged lines hidden (view full) ---

2081 err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);
2082errout:
2083 return err;
2084}
2085
2086static int inet_netconf_dump_devconf(struct sk_buff *skb,
2087 struct netlink_callback *cb)
2088{
2089 const struct nlmsghdr *nlh = cb->nlh;
2089 struct net *net = sock_net(skb->sk);
2090 int h, s_h;
2091 int idx, s_idx;
2092 struct net_device *dev;
2093 struct in_device *in_dev;
2094 struct hlist_head *head;
2095
2090 struct net *net = sock_net(skb->sk);
2091 int h, s_h;
2092 int idx, s_idx;
2093 struct net_device *dev;
2094 struct in_device *in_dev;
2095 struct hlist_head *head;
2096
2097 if (cb->strict_check) {
2098 struct netlink_ext_ack *extack = cb->extack;
2099 struct netconfmsg *ncm;
2100
2101 if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ncm))) {
2102 NL_SET_ERR_MSG(extack, "ipv4: Invalid header for netconf dump request");
2103 return -EINVAL;
2104 }
2105
2106 if (nlmsg_attrlen(nlh, sizeof(*ncm))) {
2107 NL_SET_ERR_MSG(extack, "ipv4: Invalid data after header in netconf dump request");
2108 return -EINVAL;
2109 }
2110 }
2111
2096 s_h = cb->args[0];
2097 s_idx = idx = cb->args[1];
2098
2099 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
2100 idx = 0;
2101 head = &net->dev_index_head[h];
2102 rcu_read_lock();
2103 cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
2104 net->dev_base_seq;
2105 hlist_for_each_entry_rcu(dev, head, index_hlist) {
2106 if (idx < s_idx)
2107 goto cont;
2108 in_dev = __in_dev_get_rcu(dev);
2109 if (!in_dev)
2110 goto cont;
2111
2112 if (inet_netconf_fill_devconf(skb, dev->ifindex,
2113 &in_dev->cnf,
2114 NETLINK_CB(cb->skb).portid,
2112 s_h = cb->args[0];
2113 s_idx = idx = cb->args[1];
2114
2115 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
2116 idx = 0;
2117 head = &net->dev_index_head[h];
2118 rcu_read_lock();
2119 cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
2120 net->dev_base_seq;
2121 hlist_for_each_entry_rcu(dev, head, index_hlist) {
2122 if (idx < s_idx)
2123 goto cont;
2124 in_dev = __in_dev_get_rcu(dev);
2125 if (!in_dev)
2126 goto cont;
2127
2128 if (inet_netconf_fill_devconf(skb, dev->ifindex,
2129 &in_dev->cnf,
2130 NETLINK_CB(cb->skb).portid,
2115 cb->nlh->nlmsg_seq,
2131 nlh->nlmsg_seq,
2116 RTM_NEWNETCONF,
2117 NLM_F_MULTI,
2118 NETCONFA_ALL) < 0) {
2119 rcu_read_unlock();
2120 goto done;
2121 }
2122 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
2123cont:
2124 idx++;
2125 }
2126 rcu_read_unlock();
2127 }
2128 if (h == NETDEV_HASHENTRIES) {
2129 if (inet_netconf_fill_devconf(skb, NETCONFA_IFINDEX_ALL,
2130 net->ipv4.devconf_all,
2131 NETLINK_CB(cb->skb).portid,
2132 RTM_NEWNETCONF,
2133 NLM_F_MULTI,
2134 NETCONFA_ALL) < 0) {
2135 rcu_read_unlock();
2136 goto done;
2137 }
2138 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
2139cont:
2140 idx++;
2141 }
2142 rcu_read_unlock();
2143 }
2144 if (h == NETDEV_HASHENTRIES) {
2145 if (inet_netconf_fill_devconf(skb, NETCONFA_IFINDEX_ALL,
2146 net->ipv4.devconf_all,
2147 NETLINK_CB(cb->skb).portid,
2132 cb->nlh->nlmsg_seq,
2148 nlh->nlmsg_seq,
2133 RTM_NEWNETCONF, NLM_F_MULTI,
2134 NETCONFA_ALL) < 0)
2135 goto done;
2136 else
2137 h++;
2138 }
2139 if (h == NETDEV_HASHENTRIES + 1) {
2140 if (inet_netconf_fill_devconf(skb, NETCONFA_IFINDEX_DEFAULT,
2141 net->ipv4.devconf_dflt,
2142 NETLINK_CB(cb->skb).portid,
2149 RTM_NEWNETCONF, NLM_F_MULTI,
2150 NETCONFA_ALL) < 0)
2151 goto done;
2152 else
2153 h++;
2154 }
2155 if (h == NETDEV_HASHENTRIES + 1) {
2156 if (inet_netconf_fill_devconf(skb, NETCONFA_IFINDEX_DEFAULT,
2157 net->ipv4.devconf_dflt,
2158 NETLINK_CB(cb->skb).portid,
2143 cb->nlh->nlmsg_seq,
2159 nlh->nlmsg_seq,
2144 RTM_NEWNETCONF, NLM_F_MULTI,
2145 NETCONFA_ALL) < 0)
2146 goto done;
2147 else
2148 h++;
2149 }
2150done:
2151 cb->args[0] = h;

--- 469 unchanged lines hidden --- 		2160 RTM_NEWNETCONF, NLM_F_MULTI,
2161 NETCONFA_ALL) < 0)
2162 goto done;
2163 else
2164 h++;
2165 }
2166done:
2167 cb->args[0] = h;

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