/* * Copyright (c) 2008 Daniel Mueller (daniel@danm.de) * Copyright (c) 2000 Theo de Raadt * Copyright (c) 2001 Patrik Lindergren (patrik@ipunplugged.com) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Effort sponsored in part by the Defense Advanced Research Projects * Agency (DARPA) and Air Force Research Laboratory, Air Force * Materiel Command, USAF, under agreement number F30602-01-2-0537. * */ /* Maximum queue length */ #ifndef UBS_MAX_NQUEUE #define UBS_MAX_NQUEUE 60 #endif #define UBS_MAX_SCATTER 64 /* Maximum scatter/gather depth */ #ifndef UBS_MAX_AGGR #define UBS_MAX_AGGR 5 /* Maximum aggregation count */ #endif #define UBSEC_CARD(sid) (((sid) & 0xf0000000) >> 28) #define UBSEC_SESSION(sid) ( (sid) & 0x0fffffff) #define UBSEC_SID(crd, sesn) (((crd) << 28) | ((sesn) & 0x0fffffff)) #define UBS_DEF_RTY 0xff /* PCI Retry Timeout */ #define UBS_DEF_TOUT 0xff /* PCI TRDY Timeout */ #define UBS_DEF_CACHELINE 0x01 /* Cache Line setting */ #define DEFAULT_HMAC_LEN 12 struct ubsec_dma_alloc { dma_addr_t dma_paddr; void *dma_vaddr; /* bus_dmamap_t dma_map; bus_dma_segment_t dma_seg; */ size_t dma_size; /* int dma_nseg; */ }; struct ubsec_q2 { BSD_SIMPLEQ_ENTRY(ubsec_q2) q_next; struct ubsec_dma_alloc q_mcr; struct ubsec_dma_alloc q_ctx; u_int q_type; }; struct ubsec_q2_rng { struct ubsec_q2 rng_q; struct ubsec_dma_alloc rng_buf; int rng_used; }; /* C = (M ^ E) mod N */ #define UBS_MODEXP_PAR_M 0 #define UBS_MODEXP_PAR_E 1 #define UBS_MODEXP_PAR_N 2 struct ubsec_q2_modexp { struct ubsec_q2 me_q; struct cryptkop * me_krp; struct ubsec_dma_alloc me_M; struct ubsec_dma_alloc me_E; struct ubsec_dma_alloc me_C; struct ubsec_dma_alloc me_epb; int me_modbits; int me_shiftbits; int me_normbits; }; #define UBS_RSAPRIV_PAR_P 0 #define UBS_RSAPRIV_PAR_Q 1 #define UBS_RSAPRIV_PAR_DP 2 #define UBS_RSAPRIV_PAR_DQ 3 #define UBS_RSAPRIV_PAR_PINV 4 #define UBS_RSAPRIV_PAR_MSGIN 5 #define UBS_RSAPRIV_PAR_MSGOUT 6 struct ubsec_q2_rsapriv { struct ubsec_q2 rpr_q; struct cryptkop * rpr_krp; struct ubsec_dma_alloc rpr_msgin; struct ubsec_dma_alloc rpr_msgout; }; #define UBSEC_RNG_BUFSIZ 16 /* measured in 32bit words */ struct ubsec_dmachunk { struct ubsec_mcr d_mcr; struct ubsec_mcr_add d_mcradd[UBS_MAX_AGGR-1]; struct ubsec_pktbuf d_sbuf[UBS_MAX_SCATTER-1]; struct ubsec_pktbuf d_dbuf[UBS_MAX_SCATTER-1]; u_int32_t d_macbuf[5]; union { struct ubsec_pktctx_aes256 ctxaes256; struct ubsec_pktctx_aes192 ctxaes192; struct ubsec_pktctx_des ctxdes; struct ubsec_pktctx_aes128 ctxaes128; struct ubsec_pktctx ctx; } d_ctx; }; struct ubsec_dma { BSD_SIMPLEQ_ENTRY(ubsec_dma) d_next; struct ubsec_dmachunk *d_dma; struct ubsec_dma_alloc d_alloc; }; #define UBS_FLAGS_KEY 0x01 /* has key accelerator */ #define UBS_FLAGS_LONGCTX 0x02 /* uses long ipsec ctx */ #define UBS_FLAGS_BIGKEY 0x04 /* 2048bit keys */ #define UBS_FLAGS_HWNORM 0x08 /* hardware normalization */ #define UBS_FLAGS_RNG 0x10 /* hardware rng */ #define UBS_FLAGS_AES 0x20 /* hardware AES support */ struct ubsec_q { BSD_SIMPLEQ_ENTRY(ubsec_q) q_next; int q_nstacked_mcrs; struct ubsec_q *q_stacked_mcr[UBS_MAX_AGGR-1]; struct cryptop *q_crp; struct ubsec_dma *q_dma; //struct mbuf *q_src_m, *q_dst_m; struct sk_buff *q_src_m, *q_dst_m; struct uio *q_src_io, *q_dst_io; /* bus_dmamap_t q_src_map; bus_dmamap_t q_dst_map; */ /* DMA addresses for In-/Out packages */ int q_src_len; int q_dst_len; struct ubsec_dma_alloc q_src_map[UBS_MAX_SCATTER]; struct ubsec_dma_alloc q_dst_map[UBS_MAX_SCATTER]; int q_has_dst; int q_sesn; int q_flags; }; struct ubsec_softc { softc_device_decl sc_dev; struct ssb_device *sdev; /* device backpointer */ struct device *sc_dv; /* generic device */ void *sc_ih; /* interrupt handler cookie */ int sc_flags; /* device specific flags */ u_int32_t sc_statmask; /* interrupt status mask */ int32_t sc_cid; /* crypto tag */ BSD_SIMPLEQ_HEAD(,ubsec_q) sc_queue; /* packet queue, mcr1 */ int sc_nqueue; /* count enqueued, mcr1 */ BSD_SIMPLEQ_HEAD(,ubsec_q) sc_qchip; /* on chip, mcr1 */ BSD_SIMPLEQ_HEAD(,ubsec_q) sc_freequeue; /* list of free queue elements */ BSD_SIMPLEQ_HEAD(,ubsec_q2) sc_queue2; /* packet queue, mcr2 */ int sc_nqueue2; /* count enqueued, mcr2 */ BSD_SIMPLEQ_HEAD(,ubsec_q2) sc_qchip2; /* on chip, mcr2 */ int sc_nsessions; /* # of sessions */ struct ubsec_session *sc_sessions; /* sessions */ int sc_rnghz; /* rng poll time */ struct ubsec_q2_rng sc_rng; struct ubsec_dma sc_dmaa[UBS_MAX_NQUEUE]; struct ubsec_q *sc_queuea[UBS_MAX_NQUEUE]; BSD_SIMPLEQ_HEAD(,ubsec_q2) sc_q2free; /* free list */ spinlock_t sc_ringmtx; /* PE ring lock */ }; #define UBSEC_QFLAGS_COPYOUTIV 0x1 struct ubsec_session { u_int32_t ses_used; u_int32_t ses_key[8]; /* 3DES/AES key */ u_int32_t ses_hminner[5]; /* hmac inner state */ u_int32_t ses_hmouter[5]; /* hmac outer state */ u_int32_t ses_iv[4]; /* [3]DES/AES iv */ u_int32_t ses_keysize; /* AES key size */ u_int32_t ses_mlen; /* hmac/hash length */ }; struct ubsec_stats { u_int64_t hst_ibytes; u_int64_t hst_obytes; u_int32_t hst_ipackets; u_int32_t hst_opackets; u_int32_t hst_invalid; u_int32_t hst_nomem; u_int32_t hst_queuefull; u_int32_t hst_dmaerr; u_int32_t hst_mcrerr; u_int32_t hst_nodmafree; }; struct ubsec_generic_ctx { u_int32_t pc_key[8]; /* [3]DES/AES key */ u_int32_t pc_hminner[5]; /* hmac inner state */ u_int32_t pc_hmouter[5]; /* hmac outer state */ u_int32_t pc_iv[4]; /* [3]DES/AES iv */ u_int16_t pc_flags; /* flags, below */ u_int16_t pc_offset; /* crypto offset */ u_int16_t pc_type; /* Cryptographic operation */ };