/* Copyright (c) 2016 Facebook * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. */ #define KBUILD_MODNAME "foo" #include #include #include #include #include #include #include #include #include "bpf_helpers.h" #define DEFAULT_PKTGEN_UDP_PORT 9 #define DEBUG 0 static int tcp(void *data, uint64_t tp_off, void *data_end) { struct tcphdr *tcp = data + tp_off; if (tcp + 1 > data_end) return 0; if (tcp->dest == htons(80) || tcp->source == htons(80)) return TC_ACT_SHOT; return 0; } static int udp(void *data, uint64_t tp_off, void *data_end) { struct udphdr *udp = data + tp_off; if (udp + 1 > data_end) return 0; if (udp->dest == htons(DEFAULT_PKTGEN_UDP_PORT) || udp->source == htons(DEFAULT_PKTGEN_UDP_PORT)) { if (DEBUG) { char fmt[] = "udp port 9 indeed\n"; bpf_trace_printk(fmt, sizeof(fmt)); } return TC_ACT_SHOT; } return 0; } static int parse_ipv4(void *data, uint64_t nh_off, void *data_end) { struct iphdr *iph; uint64_t ihl_len; iph = data + nh_off; if (iph + 1 > data_end) return 0; if (ip_is_fragment(iph)) return 0; ihl_len = iph->ihl * 4; if (iph->protocol == IPPROTO_IPIP) { iph = data + nh_off + ihl_len; if (iph + 1 > data_end) return 0; ihl_len += iph->ihl * 4; } if (iph->protocol == IPPROTO_TCP) return tcp(data, nh_off + ihl_len, data_end); else if (iph->protocol == IPPROTO_UDP) return udp(data, nh_off + ihl_len, data_end); return 0; } static int parse_ipv6(void *data, uint64_t nh_off, void *data_end) { struct ipv6hdr *ip6h; struct iphdr *iph; uint64_t ihl_len = sizeof(struct ipv6hdr); uint64_t nexthdr; ip6h = data + nh_off; if (ip6h + 1 > data_end) return 0; nexthdr = ip6h->nexthdr; if (nexthdr == IPPROTO_IPIP) { iph = data + nh_off + ihl_len; if (iph + 1 > data_end) return 0; ihl_len += iph->ihl * 4; nexthdr = iph->protocol; } else if (nexthdr == IPPROTO_IPV6) { ip6h = data + nh_off + ihl_len; if (ip6h + 1 > data_end) return 0; ihl_len += sizeof(struct ipv6hdr); nexthdr = ip6h->nexthdr; } if (nexthdr == IPPROTO_TCP) return tcp(data, nh_off + ihl_len, data_end); else if (nexthdr == IPPROTO_UDP) return udp(data, nh_off + ihl_len, data_end); return 0; } struct vlan_hdr { uint16_t h_vlan_TCI; uint16_t h_vlan_encapsulated_proto; }; SEC("varlen") int handle_ingress(struct __sk_buff *skb) { void *data = (void *)(long)skb->data; struct ethhdr *eth = data; void *data_end = (void *)(long)skb->data_end; uint64_t h_proto, nh_off; nh_off = sizeof(*eth); if (data + nh_off > data_end) return 0; h_proto = eth->h_proto; if (h_proto == ETH_P_8021Q || h_proto == ETH_P_8021AD) { struct vlan_hdr *vhdr; vhdr = data + nh_off; nh_off += sizeof(struct vlan_hdr); if (data + nh_off > data_end) return 0; h_proto = vhdr->h_vlan_encapsulated_proto; } if (h_proto == ETH_P_8021Q || h_proto == ETH_P_8021AD) { struct vlan_hdr *vhdr; vhdr = data + nh_off; nh_off += sizeof(struct vlan_hdr); if (data + nh_off > data_end) return 0; h_proto = vhdr->h_vlan_encapsulated_proto; } if (h_proto == htons(ETH_P_IP)) return parse_ipv4(data, nh_off, data_end); else if (h_proto == htons(ETH_P_IPV6)) return parse_ipv6(data, nh_off, data_end); return 0; } char _license[] SEC("license") = "GPL"; >
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authorMarcel J.E. Mol <marcel@mesa.nl>2017-01-30 19:26:40 +0100
committerJohan Hovold <johan@kernel.org>2017-01-31 17:27:04 +0100
commitd07830db1bdb254e4b50d366010b219286b8c937 (patch)
tree354d7fca237fa3d7e7e63c2196eaa4e1086838ea /net/bluetooth/hci_sysfs.c
parent5d03a2fd2292e71936c4235885c35ccc3c94695b (diff)
USB: serial: pl2303: add ATEN device ID
Seems that ATEN serial-to-usb devices using pl2303 exist with different device ids. This patch adds a missing device ID so it is recognised by the driver. Signed-off-by: Marcel J.E. Mol <marcel@mesa.nl> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'net/bluetooth/hci_sysfs.c')