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comparison rathaxes_start_to_implement_sk_buff_in_the_lkm.patch @ 20:ecf2a0e61fff

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rathaxes: add sk_buff stuff
author Thomas Sanchez <thomas.sanchz@gmail.com>
date Sat, 07 Jan 2012 12:46:45 +0100
parents
children 65523c345b40
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19:670925d566c7 20:ecf2a0e61fff
1 # HG changeset patch
2 # Parent c979b95fd7fbc4c38849cf42a458a50d8d2d6901
3 rathaxes: add sk_buff abstraction and add the implementation of the xmit function for the ethernet system. We have a fully (empty) functionnal ethernet driver
4
5 diff -r c979b95fd7fb rathaxes/samples/lkm/CMakeLists.txt
6 --- a/rathaxes/samples/lkm/CMakeLists.txt Sat Jan 07 12:15:32 2012 +0100
7 +++ b/rathaxes/samples/lkm/CMakeLists.txt Sat Jan 07 12:46:06 2012 +0100
8 @@ -1,6 +1,6 @@
9 ADD_RATHAXES_SOURCES(lkm lkm.rtx
10 - RTI log.rti lkm.rti pci.rti ethernet.rti
11 - BLT log.blt lkm.blt pci.blt ethernet.blt)
12 + RTI log.rti lkm.rti pci.rti socket.rti ethernet.rti
13 + BLT log.blt lkm.blt pci.blt socket.blt ethernet.blt)
14
15 # We can't name lkm since it's already used as the target name to generate the
16 # source (with ADD_RATHAXES_SOURCES).
17 diff -r c979b95fd7fb rathaxes/samples/lkm/ethernet.blt
18 --- a/rathaxes/samples/lkm/ethernet.blt Sat Jan 07 12:15:32 2012 +0100
19 +++ b/rathaxes/samples/lkm/ethernet.blt Sat Jan 07 12:46:06 2012 +0100
20 @@ -1,4 +1,4 @@
21 -with Ethernet, PCI, LKM
22 +with Ethernet, Socket, PCI, LKM
23 {
24 template type Ethernet::Device()
25 {
26 @@ -51,6 +51,24 @@
27 }
28 }
29
30 + template sequence Ethernet::send(Ethernet::Device dev, Socket::SKBuff skb)
31 + {
32 + chunk LKM::prototypes()
33 + {
34 + static int rtx_ethernet_xmit(struct sk_buff* skb, struct net_device *dev);
35 + }
36 +
37 + chunk LKM::code()
38 + {
39 + static int rtx_ethernet_xmit(struct sk_buff* skb, struct net_device *dev)
40 + {
41 + ${pointcut ::IMPLEMENTATION};
42 +
43 + return 0;
44 + }
45 + }
46 + }
47 +
48 template sequence Ethernet::close(Ethernet::Device dev)
49 {
50 chunk LKM::prototypes()
51 @@ -100,7 +118,7 @@
52 {
53 .ndo_open = rtx_ethernet_open,
54 .ndo_stop = rtx_ethernet_close,
55 - .ndo_start_xmit = NULL,
56 + .ndo_start_xmit = rtx_ethernet_xmit,
57 };
58 }
59
60 diff -r c979b95fd7fb rathaxes/samples/lkm/ethernet.rti
61 --- a/rathaxes/samples/lkm/ethernet.rti Sat Jan 07 12:15:32 2012 +0100
62 +++ b/rathaxes/samples/lkm/ethernet.rti Sat Jan 07 12:46:06 2012 +0100
63 @@ -1,4 +1,4 @@
64 -interface Ethernet : PCI, LKM
65 +interface Ethernet : Socket, PCI, LKM
66 {
67 provided type Ethernet::Device;
68
69 @@ -10,6 +10,12 @@
70 provided chunk LKM::code;
71 }
72
73 + required sequence Ethernet::send(Ethernet::Device dev, Socket::SKBuff skb)
74 + {
75 + provided chunk LKM::prototypes;
76 + provided chunk LKM::code;
77 + }
78 +
79 required sequence Ethernet::close(Ethernet::Device)
80 {
81 provided chunk LKM::prototypes;
82 diff -r c979b95fd7fb rathaxes/samples/lkm/lkm.rtx
83 --- a/rathaxes/samples/lkm/lkm.rtx Sat Jan 07 12:15:32 2012 +0100
84 +++ b/rathaxes/samples/lkm/lkm.rtx Sat Jan 07 12:46:06 2012 +0100
85 @@ -15,6 +15,11 @@
86 Log::info("Got an interruption");
87 }
88
89 + Ethernet::send(Ethernet::Device dev, Socket::SKBuff skb)
90 + {
91 + Log::info("We have one packet to transmit!");
92 + }
93 +
94 PCI::probe(PCI::Device dev)
95 {
96 Log::info("Probe the device");
97 diff -r c979b95fd7fb rathaxes/samples/lkm/socket.blt
98 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
99 +++ b/rathaxes/samples/lkm/socket.blt Sat Jan 07 12:46:06 2012 +0100
100 @@ -0,0 +1,27 @@
101 +with Socket, LKM
102 +{
103 + template type Socket::SKBuff()
104 + {
105 + chunk LKM::includes()
106 + {
107 + #include <linux/sk_buff.h>
108 + }
109 +
110 + chunk ::decl()
111 + {
112 + struct sk_buff;
113 + }
114 +
115 + chunk ::init()
116 + {
117 + }
118 +
119 + map
120 + {
121 + // some work may have to be done here in order
122 + // to access to some field of the sk_buff.
123 + // We should determine if all the sk_buff managment
124 + // can be abstracted from the user.
125 + }
126 + }
127 +}
128 diff -r c979b95fd7fb rathaxes/samples/lkm/socket.rti
129 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
130 +++ b/rathaxes/samples/lkm/socket.rti Sat Jan 07 12:46:06 2012 +0100
131 @@ -0,0 +1,4 @@
132 +interface Socket : LKM
133 +{
134 + provided type Socket::SKBuff;
135 +}