1  /* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
2  /* Copyright 2013-2015 Freescale Semiconductor Inc.
3   */
4  #ifndef __FSL_DPKG_H_
5  #define __FSL_DPKG_H_
6  
7  #include <linux/types.h>
8  
9  /* Data Path Key Generator API
10   * Contains initialization APIs and runtime APIs for the Key Generator
11   */
12  
13  /** Key Generator properties */
14  
15  /**
16   * DPKG_NUM_OF_MASKS - Number of masks per key extraction
17   */
18  #define DPKG_NUM_OF_MASKS		4
19  
20  /**
21   * DPKG_MAX_NUM_OF_EXTRACTS - Number of extractions per key profile
22   */
23  #define DPKG_MAX_NUM_OF_EXTRACTS	10
24  
25  /**
26   * enum dpkg_extract_from_hdr_type - Selecting extraction by header types
27   * @DPKG_FROM_HDR: Extract selected bytes from header, by offset
28   * @DPKG_FROM_FIELD: Extract selected bytes from header, by offset from field
29   * @DPKG_FULL_FIELD: Extract a full field
30   */
31  enum dpkg_extract_from_hdr_type {
32  	DPKG_FROM_HDR = 0,
33  	DPKG_FROM_FIELD = 1,
34  	DPKG_FULL_FIELD = 2
35  };
36  
37  /**
38   * enum dpkg_extract_type - Enumeration for selecting extraction type
39   * @DPKG_EXTRACT_FROM_HDR: Extract from the header
40   * @DPKG_EXTRACT_FROM_DATA: Extract from data not in specific header
41   * @DPKG_EXTRACT_FROM_PARSE: Extract from parser-result;
42   *	e.g. can be used to extract header existence;
43   *	please refer to 'Parse Result definition' section in the parser BG
44   */
45  enum dpkg_extract_type {
46  	DPKG_EXTRACT_FROM_HDR = 0,
47  	DPKG_EXTRACT_FROM_DATA = 1,
48  	DPKG_EXTRACT_FROM_PARSE = 3
49  };
50  
51  /**
52   * struct dpkg_mask - A structure for defining a single extraction mask
53   * @mask: Byte mask for the extracted content
54   * @offset: Offset within the extracted content
55   */
56  struct dpkg_mask {
57  	u8 mask;
58  	u8 offset;
59  };
60  
61  /* Protocol fields */
62  
63  /* Ethernet fields */
64  #define NH_FLD_ETH_DA				BIT(0)
65  #define NH_FLD_ETH_SA				BIT(1)
66  #define NH_FLD_ETH_LENGTH			BIT(2)
67  #define NH_FLD_ETH_TYPE				BIT(3)
68  #define NH_FLD_ETH_FINAL_CKSUM			BIT(4)
69  #define NH_FLD_ETH_PADDING			BIT(5)
70  #define NH_FLD_ETH_ALL_FIELDS			(BIT(6) - 1)
71  
72  /* VLAN fields */
73  #define NH_FLD_VLAN_VPRI			BIT(0)
74  #define NH_FLD_VLAN_CFI				BIT(1)
75  #define NH_FLD_VLAN_VID				BIT(2)
76  #define NH_FLD_VLAN_LENGTH			BIT(3)
77  #define NH_FLD_VLAN_TYPE			BIT(4)
78  #define NH_FLD_VLAN_ALL_FIELDS			(BIT(5) - 1)
79  
80  #define NH_FLD_VLAN_TCI				(NH_FLD_VLAN_VPRI | \
81  						 NH_FLD_VLAN_CFI | \
82  						 NH_FLD_VLAN_VID)
83  
84  /* IP (generic) fields */
85  #define NH_FLD_IP_VER				BIT(0)
86  #define NH_FLD_IP_DSCP				BIT(2)
87  #define NH_FLD_IP_ECN				BIT(3)
88  #define NH_FLD_IP_PROTO				BIT(4)
89  #define NH_FLD_IP_SRC				BIT(5)
90  #define NH_FLD_IP_DST				BIT(6)
91  #define NH_FLD_IP_TOS_TC			BIT(7)
92  #define NH_FLD_IP_ID				BIT(8)
93  #define NH_FLD_IP_ALL_FIELDS			(BIT(9) - 1)
94  
95  /* IPV4 fields */
96  #define NH_FLD_IPV4_VER				BIT(0)
97  #define NH_FLD_IPV4_HDR_LEN			BIT(1)
98  #define NH_FLD_IPV4_TOS				BIT(2)
99  #define NH_FLD_IPV4_TOTAL_LEN			BIT(3)
100  #define NH_FLD_IPV4_ID				BIT(4)
101  #define NH_FLD_IPV4_FLAG_D			BIT(5)
102  #define NH_FLD_IPV4_FLAG_M			BIT(6)
103  #define NH_FLD_IPV4_OFFSET			BIT(7)
104  #define NH_FLD_IPV4_TTL				BIT(8)
105  #define NH_FLD_IPV4_PROTO			BIT(9)
106  #define NH_FLD_IPV4_CKSUM			BIT(10)
107  #define NH_FLD_IPV4_SRC_IP			BIT(11)
108  #define NH_FLD_IPV4_DST_IP			BIT(12)
109  #define NH_FLD_IPV4_OPTS			BIT(13)
110  #define NH_FLD_IPV4_OPTS_COUNT			BIT(14)
111  #define NH_FLD_IPV4_ALL_FIELDS			(BIT(15) - 1)
112  
113  /* IPV6 fields */
114  #define NH_FLD_IPV6_VER				BIT(0)
115  #define NH_FLD_IPV6_TC				BIT(1)
116  #define NH_FLD_IPV6_SRC_IP			BIT(2)
117  #define NH_FLD_IPV6_DST_IP			BIT(3)
118  #define NH_FLD_IPV6_NEXT_HDR			BIT(4)
119  #define NH_FLD_IPV6_FL				BIT(5)
120  #define NH_FLD_IPV6_HOP_LIMIT			BIT(6)
121  #define NH_FLD_IPV6_ID				BIT(7)
122  #define NH_FLD_IPV6_ALL_FIELDS			(BIT(8) - 1)
123  
124  /* ICMP fields */
125  #define NH_FLD_ICMP_TYPE			BIT(0)
126  #define NH_FLD_ICMP_CODE			BIT(1)
127  #define NH_FLD_ICMP_CKSUM			BIT(2)
128  #define NH_FLD_ICMP_ID				BIT(3)
129  #define NH_FLD_ICMP_SQ_NUM			BIT(4)
130  #define NH_FLD_ICMP_ALL_FIELDS			(BIT(5) - 1)
131  
132  /* IGMP fields */
133  #define NH_FLD_IGMP_VERSION			BIT(0)
134  #define NH_FLD_IGMP_TYPE			BIT(1)
135  #define NH_FLD_IGMP_CKSUM			BIT(2)
136  #define NH_FLD_IGMP_DATA			BIT(3)
137  #define NH_FLD_IGMP_ALL_FIELDS			(BIT(4) - 1)
138  
139  /* TCP fields */
140  #define NH_FLD_TCP_PORT_SRC			BIT(0)
141  #define NH_FLD_TCP_PORT_DST			BIT(1)
142  #define NH_FLD_TCP_SEQ				BIT(2)
143  #define NH_FLD_TCP_ACK				BIT(3)
144  #define NH_FLD_TCP_OFFSET			BIT(4)
145  #define NH_FLD_TCP_FLAGS			BIT(5)
146  #define NH_FLD_TCP_WINDOW			BIT(6)
147  #define NH_FLD_TCP_CKSUM			BIT(7)
148  #define NH_FLD_TCP_URGPTR			BIT(8)
149  #define NH_FLD_TCP_OPTS				BIT(9)
150  #define NH_FLD_TCP_OPTS_COUNT			BIT(10)
151  #define NH_FLD_TCP_ALL_FIELDS			(BIT(11) - 1)
152  
153  /* UDP fields */
154  #define NH_FLD_UDP_PORT_SRC			BIT(0)
155  #define NH_FLD_UDP_PORT_DST			BIT(1)
156  #define NH_FLD_UDP_LEN				BIT(2)
157  #define NH_FLD_UDP_CKSUM			BIT(3)
158  #define NH_FLD_UDP_ALL_FIELDS			(BIT(4) - 1)
159  
160  /* UDP-lite fields */
161  #define NH_FLD_UDP_LITE_PORT_SRC		BIT(0)
162  #define NH_FLD_UDP_LITE_PORT_DST		BIT(1)
163  #define NH_FLD_UDP_LITE_ALL_FIELDS		(BIT(2) - 1)
164  
165  /* UDP-encap-ESP fields */
166  #define NH_FLD_UDP_ENC_ESP_PORT_SRC		BIT(0)
167  #define NH_FLD_UDP_ENC_ESP_PORT_DST		BIT(1)
168  #define NH_FLD_UDP_ENC_ESP_LEN			BIT(2)
169  #define NH_FLD_UDP_ENC_ESP_CKSUM		BIT(3)
170  #define NH_FLD_UDP_ENC_ESP_SPI			BIT(4)
171  #define NH_FLD_UDP_ENC_ESP_SEQUENCE_NUM		BIT(5)
172  #define NH_FLD_UDP_ENC_ESP_ALL_FIELDS		(BIT(6) - 1)
173  
174  /* SCTP fields */
175  #define NH_FLD_SCTP_PORT_SRC			BIT(0)
176  #define NH_FLD_SCTP_PORT_DST			BIT(1)
177  #define NH_FLD_SCTP_VER_TAG			BIT(2)
178  #define NH_FLD_SCTP_CKSUM			BIT(3)
179  #define NH_FLD_SCTP_ALL_FIELDS			(BIT(4) - 1)
180  
181  /* DCCP fields */
182  #define NH_FLD_DCCP_PORT_SRC			BIT(0)
183  #define NH_FLD_DCCP_PORT_DST			BIT(1)
184  #define NH_FLD_DCCP_ALL_FIELDS			(BIT(2) - 1)
185  
186  /* IPHC fields */
187  #define NH_FLD_IPHC_CID				BIT(0)
188  #define NH_FLD_IPHC_CID_TYPE			BIT(1)
189  #define NH_FLD_IPHC_HCINDEX			BIT(2)
190  #define NH_FLD_IPHC_GEN				BIT(3)
191  #define NH_FLD_IPHC_D_BIT			BIT(4)
192  #define NH_FLD_IPHC_ALL_FIELDS			(BIT(5) - 1)
193  
194  /* SCTP fields */
195  #define NH_FLD_SCTP_CHUNK_DATA_TYPE		BIT(0)
196  #define NH_FLD_SCTP_CHUNK_DATA_FLAGS		BIT(1)
197  #define NH_FLD_SCTP_CHUNK_DATA_LENGTH		BIT(2)
198  #define NH_FLD_SCTP_CHUNK_DATA_TSN		BIT(3)
199  #define NH_FLD_SCTP_CHUNK_DATA_STREAM_ID	BIT(4)
200  #define NH_FLD_SCTP_CHUNK_DATA_STREAM_SQN	BIT(5)
201  #define NH_FLD_SCTP_CHUNK_DATA_PAYLOAD_PID	BIT(6)
202  #define NH_FLD_SCTP_CHUNK_DATA_UNORDERED	BIT(7)
203  #define NH_FLD_SCTP_CHUNK_DATA_BEGGINING	BIT(8)
204  #define NH_FLD_SCTP_CHUNK_DATA_END		BIT(9)
205  #define NH_FLD_SCTP_CHUNK_DATA_ALL_FIELDS	(BIT(10) - 1)
206  
207  /* L2TPV2 fields */
208  #define NH_FLD_L2TPV2_TYPE_BIT			BIT(0)
209  #define NH_FLD_L2TPV2_LENGTH_BIT		BIT(1)
210  #define NH_FLD_L2TPV2_SEQUENCE_BIT		BIT(2)
211  #define NH_FLD_L2TPV2_OFFSET_BIT		BIT(3)
212  #define NH_FLD_L2TPV2_PRIORITY_BIT		BIT(4)
213  #define NH_FLD_L2TPV2_VERSION			BIT(5)
214  #define NH_FLD_L2TPV2_LEN			BIT(6)
215  #define NH_FLD_L2TPV2_TUNNEL_ID			BIT(7)
216  #define NH_FLD_L2TPV2_SESSION_ID		BIT(8)
217  #define NH_FLD_L2TPV2_NS			BIT(9)
218  #define NH_FLD_L2TPV2_NR			BIT(10)
219  #define NH_FLD_L2TPV2_OFFSET_SIZE		BIT(11)
220  #define NH_FLD_L2TPV2_FIRST_BYTE		BIT(12)
221  #define NH_FLD_L2TPV2_ALL_FIELDS		(BIT(13) - 1)
222  
223  /* L2TPV3 fields */
224  #define NH_FLD_L2TPV3_CTRL_TYPE_BIT		BIT(0)
225  #define NH_FLD_L2TPV3_CTRL_LENGTH_BIT		BIT(1)
226  #define NH_FLD_L2TPV3_CTRL_SEQUENCE_BIT		BIT(2)
227  #define NH_FLD_L2TPV3_CTRL_VERSION		BIT(3)
228  #define NH_FLD_L2TPV3_CTRL_LENGTH		BIT(4)
229  #define NH_FLD_L2TPV3_CTRL_CONTROL		BIT(5)
230  #define NH_FLD_L2TPV3_CTRL_SENT			BIT(6)
231  #define NH_FLD_L2TPV3_CTRL_RECV			BIT(7)
232  #define NH_FLD_L2TPV3_CTRL_FIRST_BYTE		BIT(8)
233  #define NH_FLD_L2TPV3_CTRL_ALL_FIELDS		(BIT(9) - 1)
234  
235  #define NH_FLD_L2TPV3_SESS_TYPE_BIT		BIT(0)
236  #define NH_FLD_L2TPV3_SESS_VERSION		BIT(1)
237  #define NH_FLD_L2TPV3_SESS_ID			BIT(2)
238  #define NH_FLD_L2TPV3_SESS_COOKIE		BIT(3)
239  #define NH_FLD_L2TPV3_SESS_ALL_FIELDS		(BIT(4) - 1)
240  
241  /* PPP fields */
242  #define NH_FLD_PPP_PID				BIT(0)
243  #define NH_FLD_PPP_COMPRESSED			BIT(1)
244  #define NH_FLD_PPP_ALL_FIELDS			(BIT(2) - 1)
245  
246  /* PPPoE fields */
247  #define NH_FLD_PPPOE_VER			BIT(0)
248  #define NH_FLD_PPPOE_TYPE			BIT(1)
249  #define NH_FLD_PPPOE_CODE			BIT(2)
250  #define NH_FLD_PPPOE_SID			BIT(3)
251  #define NH_FLD_PPPOE_LEN			BIT(4)
252  #define NH_FLD_PPPOE_SESSION			BIT(5)
253  #define NH_FLD_PPPOE_PID			BIT(6)
254  #define NH_FLD_PPPOE_ALL_FIELDS			(BIT(7) - 1)
255  
256  /* PPP-Mux fields */
257  #define NH_FLD_PPPMUX_PID			BIT(0)
258  #define NH_FLD_PPPMUX_CKSUM			BIT(1)
259  #define NH_FLD_PPPMUX_COMPRESSED		BIT(2)
260  #define NH_FLD_PPPMUX_ALL_FIELDS		(BIT(3) - 1)
261  
262  /* PPP-Mux sub-frame fields */
263  #define NH_FLD_PPPMUX_SUBFRM_PFF		BIT(0)
264  #define NH_FLD_PPPMUX_SUBFRM_LXT		BIT(1)
265  #define NH_FLD_PPPMUX_SUBFRM_LEN		BIT(2)
266  #define NH_FLD_PPPMUX_SUBFRM_PID		BIT(3)
267  #define NH_FLD_PPPMUX_SUBFRM_USE_PID		BIT(4)
268  #define NH_FLD_PPPMUX_SUBFRM_ALL_FIELDS		(BIT(5) - 1)
269  
270  /* LLC fields */
271  #define NH_FLD_LLC_DSAP				BIT(0)
272  #define NH_FLD_LLC_SSAP				BIT(1)
273  #define NH_FLD_LLC_CTRL				BIT(2)
274  #define NH_FLD_LLC_ALL_FIELDS			(BIT(3) - 1)
275  
276  /* NLPID fields */
277  #define NH_FLD_NLPID_NLPID			BIT(0)
278  #define NH_FLD_NLPID_ALL_FIELDS			(BIT(1) - 1)
279  
280  /* SNAP fields */
281  #define NH_FLD_SNAP_OUI				BIT(0)
282  #define NH_FLD_SNAP_PID				BIT(1)
283  #define NH_FLD_SNAP_ALL_FIELDS			(BIT(2) - 1)
284  
285  /* LLC SNAP fields */
286  #define NH_FLD_LLC_SNAP_TYPE			BIT(0)
287  #define NH_FLD_LLC_SNAP_ALL_FIELDS		(BIT(1) - 1)
288  
289  /* ARP fields */
290  #define NH_FLD_ARP_HTYPE			BIT(0)
291  #define NH_FLD_ARP_PTYPE			BIT(1)
292  #define NH_FLD_ARP_HLEN				BIT(2)
293  #define NH_FLD_ARP_PLEN				BIT(3)
294  #define NH_FLD_ARP_OPER				BIT(4)
295  #define NH_FLD_ARP_SHA				BIT(5)
296  #define NH_FLD_ARP_SPA				BIT(6)
297  #define NH_FLD_ARP_THA				BIT(7)
298  #define NH_FLD_ARP_TPA				BIT(8)
299  #define NH_FLD_ARP_ALL_FIELDS			(BIT(9) - 1)
300  
301  /* RFC2684 fields */
302  #define NH_FLD_RFC2684_LLC			BIT(0)
303  #define NH_FLD_RFC2684_NLPID			BIT(1)
304  #define NH_FLD_RFC2684_OUI			BIT(2)
305  #define NH_FLD_RFC2684_PID			BIT(3)
306  #define NH_FLD_RFC2684_VPN_OUI			BIT(4)
307  #define NH_FLD_RFC2684_VPN_IDX			BIT(5)
308  #define NH_FLD_RFC2684_ALL_FIELDS		(BIT(6) - 1)
309  
310  /* User defined fields */
311  #define NH_FLD_USER_DEFINED_SRCPORT		BIT(0)
312  #define NH_FLD_USER_DEFINED_PCDID		BIT(1)
313  #define NH_FLD_USER_DEFINED_ALL_FIELDS		(BIT(2) - 1)
314  
315  /* Payload fields */
316  #define NH_FLD_PAYLOAD_BUFFER			BIT(0)
317  #define NH_FLD_PAYLOAD_SIZE			BIT(1)
318  #define NH_FLD_MAX_FRM_SIZE			BIT(2)
319  #define NH_FLD_MIN_FRM_SIZE			BIT(3)
320  #define NH_FLD_PAYLOAD_TYPE			BIT(4)
321  #define NH_FLD_FRAME_SIZE			BIT(5)
322  #define NH_FLD_PAYLOAD_ALL_FIELDS		(BIT(6) - 1)
323  
324  /* GRE fields */
325  #define NH_FLD_GRE_TYPE				BIT(0)
326  #define NH_FLD_GRE_ALL_FIELDS			(BIT(1) - 1)
327  
328  /* MINENCAP fields */
329  #define NH_FLD_MINENCAP_SRC_IP			BIT(0)
330  #define NH_FLD_MINENCAP_DST_IP			BIT(1)
331  #define NH_FLD_MINENCAP_TYPE			BIT(2)
332  #define NH_FLD_MINENCAP_ALL_FIELDS		(BIT(3) - 1)
333  
334  /* IPSEC AH fields */
335  #define NH_FLD_IPSEC_AH_SPI			BIT(0)
336  #define NH_FLD_IPSEC_AH_NH			BIT(1)
337  #define NH_FLD_IPSEC_AH_ALL_FIELDS		(BIT(2) - 1)
338  
339  /* IPSEC ESP fields */
340  #define NH_FLD_IPSEC_ESP_SPI			BIT(0)
341  #define NH_FLD_IPSEC_ESP_SEQUENCE_NUM		BIT(1)
342  #define NH_FLD_IPSEC_ESP_ALL_FIELDS		(BIT(2) - 1)
343  
344  /* MPLS fields */
345  #define NH_FLD_MPLS_LABEL_STACK			BIT(0)
346  #define NH_FLD_MPLS_LABEL_STACK_ALL_FIELDS	(BIT(1) - 1)
347  
348  /* MACSEC fields */
349  #define NH_FLD_MACSEC_SECTAG			BIT(0)
350  #define NH_FLD_MACSEC_ALL_FIELDS		(BIT(1) - 1)
351  
352  /* GTP fields */
353  #define NH_FLD_GTP_TEID				BIT(0)
354  
355  /* Supported protocols */
356  enum net_prot {
357  	NET_PROT_NONE = 0,
358  	NET_PROT_PAYLOAD,
359  	NET_PROT_ETH,
360  	NET_PROT_VLAN,
361  	NET_PROT_IPV4,
362  	NET_PROT_IPV6,
363  	NET_PROT_IP,
364  	NET_PROT_TCP,
365  	NET_PROT_UDP,
366  	NET_PROT_UDP_LITE,
367  	NET_PROT_IPHC,
368  	NET_PROT_SCTP,
369  	NET_PROT_SCTP_CHUNK_DATA,
370  	NET_PROT_PPPOE,
371  	NET_PROT_PPP,
372  	NET_PROT_PPPMUX,
373  	NET_PROT_PPPMUX_SUBFRM,
374  	NET_PROT_L2TPV2,
375  	NET_PROT_L2TPV3_CTRL,
376  	NET_PROT_L2TPV3_SESS,
377  	NET_PROT_LLC,
378  	NET_PROT_LLC_SNAP,
379  	NET_PROT_NLPID,
380  	NET_PROT_SNAP,
381  	NET_PROT_MPLS,
382  	NET_PROT_IPSEC_AH,
383  	NET_PROT_IPSEC_ESP,
384  	NET_PROT_UDP_ENC_ESP, /* RFC 3948 */
385  	NET_PROT_MACSEC,
386  	NET_PROT_GRE,
387  	NET_PROT_MINENCAP,
388  	NET_PROT_DCCP,
389  	NET_PROT_ICMP,
390  	NET_PROT_IGMP,
391  	NET_PROT_ARP,
392  	NET_PROT_CAPWAP_DATA,
393  	NET_PROT_CAPWAP_CTRL,
394  	NET_PROT_RFC2684,
395  	NET_PROT_ICMPV6,
396  	NET_PROT_FCOE,
397  	NET_PROT_FIP,
398  	NET_PROT_ISCSI,
399  	NET_PROT_GTP,
400  	NET_PROT_USER_DEFINED_L2,
401  	NET_PROT_USER_DEFINED_L3,
402  	NET_PROT_USER_DEFINED_L4,
403  	NET_PROT_USER_DEFINED_L5,
404  	NET_PROT_USER_DEFINED_SHIM1,
405  	NET_PROT_USER_DEFINED_SHIM2,
406  
407  	NET_PROT_DUMMY_LAST
408  };
409  
410  /**
411   * struct dpkg_extract - A structure for defining a single extraction
412   * @type: Determines how the union below is interpreted:
413   *	DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
414   *	DPKG_EXTRACT_FROM_DATA: selects 'from_data';
415   *	DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
416   * @extract: Selects extraction method
417   * @extract.from_hdr: Used when 'type = DPKG_EXTRACT_FROM_HDR'
418   * @extract.from_data: Used when 'type = DPKG_EXTRACT_FROM_DATA'
419   * @extract.from_parse:  Used when 'type = DPKG_EXTRACT_FROM_PARSE'
420   * @extract.from_hdr.prot: Any of the supported headers
421   * @extract.from_hdr.type: Defines the type of header extraction:
422   *	DPKG_FROM_HDR: use size & offset below;
423   *	DPKG_FROM_FIELD: use field, size and offset below;
424   *	DPKG_FULL_FIELD: use field below
425   * @extract.from_hdr.field: One of the supported fields (NH_FLD_)
426   * @extract.from_hdr.size: Size in bytes
427   * @extract.from_hdr.offset: Byte offset
428   * @extract.from_hdr.hdr_index: Clear for cases not listed below;
429   *	Used for protocols that may have more than a single
430   *	header, 0 indicates an outer header;
431   *	Supported protocols (possible values):
432   *	NET_PROT_VLAN (0, HDR_INDEX_LAST);
433   *	NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
434   *	NET_PROT_IP(0, HDR_INDEX_LAST);
435   *	NET_PROT_IPv4(0, HDR_INDEX_LAST);
436   *	NET_PROT_IPv6(0, HDR_INDEX_LAST);
437   * @extract.from_data.size: Size in bytes
438   * @extract.from_data.offset: Byte offset
439   * @extract.from_parse.size: Size in bytes
440   * @extract.from_parse.offset: Byte offset
441   * @num_of_byte_masks: Defines the number of valid entries in the array below;
442   *		This is	also the number of bytes to be used as masks
443   * @masks: Masks parameters
444   */
445  struct dpkg_extract {
446  	enum dpkg_extract_type type;
447  	union {
448  		struct {
449  			enum net_prot			prot;
450  			enum dpkg_extract_from_hdr_type type;
451  			u32			field;
452  			u8			size;
453  			u8			offset;
454  			u8			hdr_index;
455  		} from_hdr;
456  		struct {
457  			u8 size;
458  			u8 offset;
459  		} from_data;
460  		struct {
461  			u8 size;
462  			u8 offset;
463  		} from_parse;
464  	} extract;
465  
466  	u8		num_of_byte_masks;
467  	struct dpkg_mask	masks[DPKG_NUM_OF_MASKS];
468  };
469  
470  /**
471   * struct dpkg_profile_cfg - A structure for defining a full Key Generation
472   *				profile (rule)
473   * @num_extracts: Defines the number of valid entries in the array below
474   * @extracts: Array of required extractions
475   */
476  struct dpkg_profile_cfg {
477  	u8 num_extracts;
478  	struct dpkg_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
479  };
480  
481  #endif /* __FSL_DPKG_H_ */
482