#define KBUILD_MODNAME "foo"
#include <uapi/linux/bpf.h>
#include <uapi/linux/if_ether.h>
#include <uapi/linux/if_packet.h>
#include <uapi/linux/ip.h>
#include <uapi/linux/in.h>
#include <uapi/linux/tcp.h>
#include <uapi/linux/filter.h>
#include <uapi/linux/pkt_cls.h>
#include "bpf_helpers.h"

/* compiler workaround */
#define _htonl __builtin_bswap32

static inline void set_dst_mac(struct __sk_buff *skb, char *mac)
{
	bpf_skb_store_bytes(skb, 0, mac, ETH_ALEN, 1);
}

#define IP_CSUM_OFF (ETH_HLEN + offsetof(struct iphdr, check))
#define TOS_OFF (ETH_HLEN + offsetof(struct iphdr, tos))

static inline void set_ip_tos(struct __sk_buff *skb, __u8 new_tos)
{
	__u8 old_tos = load_byte(skb, TOS_OFF);

	bpf_l3_csum_replace(skb, IP_CSUM_OFF, htons(old_tos), htons(new_tos), 2);
	bpf_skb_store_bytes(skb, TOS_OFF, &new_tos, sizeof(new_tos), 0);
}

#define TCP_CSUM_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct tcphdr, check))
#define IP_SRC_OFF (ETH_HLEN + offsetof(struct iphdr, saddr))

#define IS_PSEUDO 0x10

static inline void set_tcp_ip_src(struct __sk_buff *skb, __u32 new_ip)
{
	__u32 old_ip = _htonl(load_word(skb, IP_SRC_OFF));

	bpf_l4_csum_replace(skb, TCP_CSUM_OFF, old_ip, new_ip, IS_PSEUDO | sizeof(new_ip));
	bpf_l3_csum_replace(skb, IP_CSUM_OFF, old_ip, new_ip, sizeof(new_ip));
	bpf_skb_store_bytes(skb, IP_SRC_OFF, &new_ip, sizeof(new_ip), 0);
}

#define TCP_DPORT_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct tcphdr, dest))
static inline void set_tcp_dest_port(struct __sk_buff *skb, __u16 new_port)
{
	__u16 old_port = htons(load_half(skb, TCP_DPORT_OFF));

	bpf_l4_csum_replace(skb, TCP_CSUM_OFF, old_port, new_port, sizeof(new_port));
	bpf_skb_store_bytes(skb, TCP_DPORT_OFF, &new_port, sizeof(new_port), 0);
}

SEC("classifier")
int bpf_prog1(struct __sk_buff *skb)
{
	__u8 proto = load_byte(skb, ETH_HLEN + offsetof(struct iphdr, protocol));
	long *value;

	if (proto == IPPROTO_TCP) {
		set_ip_tos(skb, 8);
		set_tcp_ip_src(skb, 0xA010101);
		set_tcp_dest_port(skb, 5001);
	}

	return 0;
}
SEC("redirect_xmit")
int _redirect_xmit(struct __sk_buff *skb)
{
	return bpf_redirect(skb->ifindex + 1, 0);
}
SEC("redirect_recv")
int _redirect_recv(struct __sk_buff *skb)
{
	return bpf_redirect(skb->ifindex + 1, 1);
}
SEC("clone_redirect_xmit")
int _clone_redirect_xmit(struct __sk_buff *skb)
{
	bpf_clone_redirect(skb, skb->ifindex + 1, 0);
	return TC_ACT_SHOT;
}
SEC("clone_redirect_recv")
int _clone_redirect_recv(struct __sk_buff *skb)
{
	bpf_clone_redirect(skb, skb->ifindex + 1, 1);
	return TC_ACT_SHOT;
}
char _license[] SEC("license") = "GPL";
msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/isa?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>isa</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/isa/es1688?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>es1688</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='3c223c19aea85d3dda1416c187915f4a30b04b1f'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Markus Mayer &lt;mmayer@broadcom.com&gt;</td><td class='right'>2016-12-19 12:10:28 -0800</td></tr>
<tr><th>committer</th><td>Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;</td><td class='right'>2017-01-27 11:43:49 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/isa/es1688?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>3c223c19aea85d3dda1416c187915f4a30b04b1f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/isa/es1688?id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>2d2021f8161db3e9ed38b9a966a225b66dff8e58</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/isa/es1688?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>sound/isa/es1688</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/isa/es1688?h=nds-private-remove&amp;id=9b02c54bc951fca884ba5719f42a27e8240965bf'>9b02c54bc951fca884ba5719f42a27e8240965bf</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/isa/es1688?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f&amp;id2=9b02c54bc951fca884ba5719f42a27e8240965bf'>diff</a>)</td></tr></table>
<div class='commit-subject'>cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend</div><div class='commit-msg'>The AVS GET_PMAP command does return a P-state along with the P-map
information. However, that P-state is the initial P-state when the
P-map was first downloaded to AVS. It is *not* the current P-state.

Therefore, we explicitly retrieve the P-state using the GET_PSTATE
command.

Signed-off-by: Markus Mayer &lt;mmayer@broadcom.com&gt;
Acked-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>Diffstat</a> (limited to 'sound/isa/es1688')</div><table summary='diffstat' class='diffstat'>