diff options
Diffstat (limited to 'drivers/crypto/caam/pdb.h')
| -rw-r--r-- | drivers/crypto/caam/pdb.h | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/drivers/crypto/caam/pdb.h b/drivers/crypto/caam/pdb.h new file mode 100644 index 000000000000..62950d22ac13 --- /dev/null +++ b/drivers/crypto/caam/pdb.h @@ -0,0 +1,401 @@ +/* + * CAAM Protocol Data Block (PDB) definition header file + * + * Copyright 2008-2012 Freescale Semiconductor, Inc. + * + */ + +#ifndef CAAM_PDB_H +#define CAAM_PDB_H + +/* + * PDB- IPSec ESP Header Modification Options + */ +#define PDBHMO_ESP_DECAP_SHIFT 12 +#define PDBHMO_ESP_ENCAP_SHIFT 4 +/* + * Encap and Decap - Decrement TTL (Hop Limit) - Based on the value of the + * Options Byte IP version (IPvsn) field: + * if IPv4, decrement the inner IP header TTL field (byte 8); + * if IPv6 decrement the inner IP header Hop Limit field (byte 7). +*/ +#define PDBHMO_ESP_DECAP_DEC_TTL (0x02 << PDBHMO_ESP_DECAP_SHIFT) +#define PDBHMO_ESP_ENCAP_DEC_TTL (0x02 << PDBHMO_ESP_ENCAP_SHIFT) +/* + * Decap - DiffServ Copy - Copy the IPv4 TOS or IPv6 Traffic Class byte + * from the outer IP header to the inner IP header. + */ +#define PDBHMO_ESP_DIFFSERV (0x01 << PDBHMO_ESP_DECAP_SHIFT) +/* + * Encap- Copy DF bit -if an IPv4 tunnel mode outer IP header is coming from + * the PDB, copy the DF bit from the inner IP header to the outer IP header. + */ +#define PDBHMO_ESP_DFBIT (0x04 << PDBHMO_ESP_ENCAP_SHIFT) + +/* + * PDB - IPSec ESP Encap/Decap Options + */ +#define PDBOPTS_ESP_ARSNONE 0x00 /* no antireplay window */ +#define PDBOPTS_ESP_ARS32 0x40 /* 32-entry antireplay window */ +#define PDBOPTS_ESP_ARS64 0xc0 /* 64-entry antireplay window */ +#define PDBOPTS_ESP_IVSRC 0x20 /* IV comes from internal random gen */ +#define PDBOPTS_ESP_ESN 0x10 /* extended sequence included */ +#define PDBOPTS_ESP_OUTFMT 0x08 /* output only decapsulation (decap) */ +#define PDBOPTS_ESP_IPHDRSRC 0x08 /* IP header comes from PDB (encap) */ +#define PDBOPTS_ESP_INCIPHDR 0x04 /* Prepend IP header to output frame */ +#define PDBOPTS_ESP_IPVSN 0x02 /* process IPv6 header */ +#define PDBOPTS_ESP_TUNNEL 0x01 /* tunnel mode next-header byte */ +#define PDBOPTS_ESP_IPV6 0x02 /* ip header version is V6 */ +#define PDBOPTS_ESP_DIFFSERV 0x40 /* copy TOS/TC from inner iphdr */ +#define PDBOPTS_ESP_UPDATE_CSUM 0x80 /* encap-update ip header checksum */ +#define PDBOPTS_ESP_VERIFY_CSUM 0x20 /* decap-validate ip header checksum */ + +/* + * General IPSec encap/decap PDB definitions + */ +struct ipsec_encap_cbc { + u32 iv[4]; +}; + +struct ipsec_encap_ctr { + u32 ctr_nonce; + u32 ctr_initial; + u32 iv[2]; +}; + +struct ipsec_encap_ccm { + u32 salt; /* lower 24 bits */ + u8 b0_flags; + u8 ctr_flags; + u16 ctr_initial; + u32 iv[2]; +}; + +struct ipsec_encap_gcm { + u32 salt; /* lower 24 bits */ + u32 rsvd1; + u32 iv[2]; +}; + +struct ipsec_encap_pdb { + u8 hmo_rsvd; + u8 ip_nh; + u8 ip_nh_offset; + u8 options; + u32 seq_num_ext_hi; + u32 seq_num; + union { + struct ipsec_encap_cbc cbc; + struct ipsec_encap_ctr ctr; + struct ipsec_encap_ccm ccm; + struct ipsec_encap_gcm gcm; + }; + u32 spi; + u16 rsvd1; + u16 ip_hdr_len; + u32 ip_hdr[0]; /* optional IP Header content */ +}; + +struct ipsec_decap_cbc { + u32 rsvd[2]; +}; + +struct ipsec_decap_ctr { + u32 salt; + u32 ctr_initial; +}; + +struct ipsec_decap_ccm { + u32 salt; + u8 iv_flags; + u8 ctr_flags; + u16 ctr_initial; +}; + +struct ipsec_decap_gcm { + u32 salt; + u32 resvd; +}; + +struct ipsec_decap_pdb { + u16 hmo_ip_hdr_len; + u8 ip_nh_offset; + u8 options; + union { + struct ipsec_decap_cbc cbc; + struct ipsec_decap_ctr ctr; + struct ipsec_decap_ccm ccm; + struct ipsec_decap_gcm gcm; + }; + u32 seq_num_ext_hi; + u32 seq_num; + u32 anti_replay[2]; + u32 end_index[0]; +}; + +/* + * IPSec ESP Datapath Protocol Override Register (DPOVRD) + */ +struct ipsec_deco_dpovrd { +#define IPSEC_ENCAP_DECO_DPOVRD_USE 0x80 + u8 ovrd_ecn; + u8 ip_hdr_len; + u8 nh_offset; + u8 next_header; /* reserved if decap */ +}; + +/* + * IEEE 802.11i WiFi Protocol Data Block + */ +#define WIFI_PDBOPTS_FCS 0x01 +#define WIFI_PDBOPTS_AR 0x40 + +struct wifi_encap_pdb { + u16 mac_hdr_len; + u8 rsvd; + u8 options; + u8 iv_flags; + u8 pri; + u16 pn1; + u32 pn2; + u16 frm_ctrl_mask; + u16 seq_ctrl_mask; + u8 rsvd1[2]; + u8 cnst; + u8 key_id; + u8 ctr_flags; + u8 rsvd2; + u16 ctr_init; +}; + +struct wifi_decap_pdb { + u16 mac_hdr_len; + u8 rsvd; + u8 options; + u8 iv_flags; + u8 pri; + u16 pn1; + u32 pn2; + u16 frm_ctrl_mask; + u16 seq_ctrl_mask; + u8 rsvd1[4]; + u8 ctr_flags; + u8 rsvd2; + u16 ctr_init; +}; + +/* + * IEEE 802.16 WiMAX Protocol Data Block + */ +#define WIMAX_PDBOPTS_FCS 0x01 +#define WIMAX_PDBOPTS_AR 0x40 /* decap only */ + +struct wimax_encap_pdb { + u8 rsvd[3]; + u8 options; + u32 nonce; + u8 b0_flags; + u8 ctr_flags; + u16 ctr_init; + /* begin DECO writeback region */ + u32 pn; + /* end DECO writeback region */ +}; + +struct wimax_decap_pdb { + u8 rsvd[3]; + u8 options; + u32 nonce; + u8 iv_flags; + u8 ctr_flags; + u16 ctr_init; + /* begin DECO writeback region */ + u32 pn; + u8 rsvd1[2]; + u16 antireplay_len; + u64 antireplay_scorecard; + /* end DECO writeback region */ +}; + +/* + * IEEE 801.AE MacSEC Protocol Data Block + */ +#define MACSEC_PDBOPTS_FCS 0x01 +#define MACSEC_PDBOPTS_AR 0x40 /* used in decap only */ + +struct macsec_encap_pdb { + u16 aad_len; + u8 rsvd; + u8 options; + u64 sci; + u16 ethertype; + u8 tci_an; + u8 rsvd1; + /* begin DECO writeback region */ + u32 pn; + /* end DECO writeback region */ +}; + +struct macsec_decap_pdb { + u16 aad_len; + u8 rsvd; + u8 options; + u64 sci; + u8 rsvd1[3]; + /* begin DECO writeback region */ + u8 antireplay_len; + u32 pn; + u64 antireplay_scorecard; + /* end DECO writeback region */ +}; + +/* + * SSL/TLS/DTLS Protocol Data Blocks + */ + +#define TLS_PDBOPTS_ARS32 0x40 +#define TLS_PDBOPTS_ARS64 0xc0 +#define TLS_PDBOPTS_OUTFMT 0x08 +#define TLS_PDBOPTS_IV_WRTBK 0x02 /* 1.1/1.2/DTLS only */ +#define TLS_PDBOPTS_EXP_RND_IV 0x01 /* 1.1/1.2/DTLS only */ + +struct tls_block_encap_pdb { + u8 type; + u8 version[2]; + u8 options; + u64 seq_num; + u32 iv[4]; +}; + +struct tls_stream_encap_pdb { + u8 type; + u8 version[2]; + u8 options; + u64 seq_num; + u8 i; + u8 j; + u8 rsvd1[2]; +}; + +struct dtls_block_encap_pdb { + u8 type; + u8 version[2]; + u8 options; + u16 epoch; + u16 seq_num[3]; + u32 iv[4]; +}; + +struct tls_block_decap_pdb { + u8 rsvd[3]; + u8 options; + u64 seq_num; + u32 iv[4]; +}; + +struct tls_stream_decap_pdb { + u8 rsvd[3]; + u8 options; + u64 seq_num; + u8 i; + u8 j; + u8 rsvd1[2]; +}; + +struct dtls_block_decap_pdb { + u8 rsvd[3]; + u8 options; + u16 epoch; + u16 seq_num[3]; + u32 iv[4]; + u64 antireplay_scorecard; +}; + +/* + * SRTP Protocol Data Blocks + */ +#define SRTP_PDBOPTS_MKI 0x08 +#define SRTP_PDBOPTS_AR 0x40 + +struct srtp_encap_pdb { + u8 x_len; + u8 mki_len; + u8 n_tag; + u8 options; + u32 cnst0; + u8 rsvd[2]; + u16 cnst1; + u16 salt[7]; + u16 cnst2; + u32 rsvd1; + u32 roc; + u32 opt_mki; +}; + +struct srtp_decap_pdb { + u8 x_len; + u8 mki_len; + u8 n_tag; + u8 options; + u32 cnst0; + u8 rsvd[2]; + u16 cnst1; + u16 salt[7]; + u16 cnst2; + u16 rsvd1; + u16 seq_num; + u32 roc; + u64 antireplay_scorecard; +}; + +/* + * DSA/ECDSA Protocol Data Blocks + * Two of these exist: DSA-SIGN, and DSA-VERIFY. They are similar + * except for the treatment of "w" for verify, "s" for sign, + * and the placement of "a,b". + */ +#define DSA_PDB_SGF_SHIFT 24 +#define DSA_PDB_SGF_MASK (0xff << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_Q (0x80 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_R (0x40 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_G (0x20 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_W (0x10 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_S (0x10 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_F (0x08 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_C (0x04 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_D (0x02 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_AB_SIGN (0x02 << DSA_PDB_SGF_SHIFT) +#define DSA_PDB_SGF_AB_VERIFY (0x01 << DSA_PDB_SGF_SHIFT) + +#define DSA_PDB_L_SHIFT 7 +#define DSA_PDB_L_MASK (0x3ff << DSA_PDB_L_SHIFT) + +#define DSA_PDB_N_MASK 0x7f + +struct dsa_sign_pdb { + u32 sgf_ln; /* Use DSA_PDB_ defintions per above */ + u8 *q; + u8 *r; + u8 *g; /* or Gx,y */ + u8 *s; + u8 *f; + u8 *c; + u8 *d; + u8 *ab; /* ECC only */ + u8 *u; +}; + +struct dsa_verify_pdb { + u32 sgf_ln; + u8 *q; + u8 *r; + u8 *g; /* or Gx,y */ + u8 *w; /* or Wx,y */ + u8 *f; + u8 *c; + u8 *d; + u8 *tmp; /* temporary data block */ + u8 *ab; /* only used if ECC processing */ +}; + +#endif |