/* * 'raw' table, which is the very first hooked in at PRE_ROUTING and LOCAL_OUT . * * Copyright (C) 2003 Jozsef Kadlecsik */ #include #include #include #include #define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT)) static int __net_init iptable_raw_table_init(struct net *net); static const struct xt_table packet_raw = { .name = "raw", .valid_hooks = RAW_VALID_HOOKS, .me = THIS_MODULE, .af = NFPROTO_IPV4, .priority = NF_IP_PRI_RAW, .table_init = iptable_raw_table_init, }; /* The work comes in here from netfilter.c. */ static unsigned int iptable_raw_hook(void *priv, struct sk_buff *skb, const struct nf_hook_state *state) { if (state->hook == NF_INET_LOCAL_OUT && (skb->len < sizeof(struct iphdr) || ip_hdrlen(skb) < sizeof(struct iphdr))) /* root is playing with raw sockets. */ return NF_ACCEPT; return ipt_do_table(skb, state, state->net->ipv4.iptable_raw); } static struct nf_hook_ops *rawtable_ops __read_mostly; static int __net_init iptable_raw_table_init(struct net *net) { struct ipt_replace *repl; int ret; if (net->ipv4.iptable_raw) return 0; repl = ipt_alloc_initial_table(&packet_raw); if (repl == NULL) return -ENOMEM; ret = ipt_register_table(net, &packet_raw, repl, rawtable_ops, &net->ipv4.iptable_raw); kfree(repl); return ret; } static void __net_exit iptable_raw_net_exit(struct net *net) { if (!net->ipv4.iptable_raw) return; ipt_unregister_table(net, net->ipv4.iptable_raw, rawtable_ops); net->ipv4.iptable_raw = NULL; } static struct pernet_operations iptable_raw_net_ops = { .exit = iptable_raw_net_exit, }; static int __init iptable_raw_init(void) { int ret; rawtable_ops = xt_hook_ops_alloc(&packet_raw, iptable_raw_hook); if (IS_ERR(rawtable_ops)) return PTR_ERR(rawtable_ops); ret = register_pernet_subsys(&iptable_raw_net_ops); if (ret < 0) { kfree(rawtable_ops); return ret; } ret = iptable_raw_table_init(&init_net); if (ret) { unregister_pernet_subsys(&iptable_raw_net_ops); kfree(rawtable_ops); } return ret; } static void __exit iptable_raw_fini(void) { unregister_pernet_subsys(&iptable_raw_net_ops); kfree(rawtable_ops); } module_init(iptable_raw_init); module_exit(iptable_raw_fini); MODULE_LICENSE("GPL"); de/net/irda/irlap_event.h'>
path: root/include/net/irda/irlap_event.h
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authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_recvfrom.c')