diff options
Diffstat (limited to 'drivers/crypto/amcc/crypto4xx_sa.c')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_sa.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_sa.c b/drivers/crypto/amcc/crypto4xx_sa.c index 466fd94cd4a..fa4ff7ac66a 100644 --- a/drivers/crypto/amcc/crypto4xx_sa.c +++ b/drivers/crypto/amcc/crypto4xx_sa.c @@ -84,6 +84,119 @@ u32 get_dynamic_sa_offset_state_ptr_field(struct crypto4xx_ctx *ctx) return sizeof(struct dynamic_sa_ctl) + offset * 4; } +u32 get_dynamic_sa_offset_arc4_state_ptr(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + offset = cts.bf.key_size + + cts.bf.inner_size + + cts.bf.outer_size + + cts.bf.spi + + cts.bf.seq_num0 + + cts.bf.seq_num1 + + cts.bf.seq_num_mask0 + + cts.bf.seq_num_mask1 + + cts.bf.seq_num_mask2 + + cts.bf.seq_num_mask3 + + cts.bf.iv0 + + cts.bf.iv1 + + cts.bf.iv2 + + cts.bf.iv3 + + cts.bf.state_ptr + + cts.bf.arc4_ij_ptr; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_offset_inner_digest(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + offset = cts.bf.key_size; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_offset_outer_digest(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + + offset = cts.bf.key_size + + cts.bf.inner_size; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_offset_spi(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + + offset = cts.bf.key_size + + cts.bf.inner_size + + cts.bf.outer_size; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_offset_seq_num(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + + offset = cts.bf.key_size + + cts.bf.inner_size + + cts.bf.outer_size + + cts.bf.spi; + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + +u32 get_dynamic_sa_offset_seq_num_mask(struct crypto4xx_ctx *ctx) +{ + u32 offset; + union dynamic_sa_contents cts; + + if (ctx->direction == DIR_INBOUND) + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents; + else + cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents; + + offset = cts.bf.key_size + + cts.bf.inner_size + + cts.bf.outer_size + + cts.bf.spi + + cts.bf.seq_num0 + + cts.bf.seq_num1; + + return sizeof(struct dynamic_sa_ctl) + offset * 4; +} + u32 get_dynamic_sa_iv_size(struct crypto4xx_ctx *ctx) { union dynamic_sa_contents cts; @@ -92,6 +205,7 @@ u32 get_dynamic_sa_iv_size(struct crypto4xx_ctx *ctx) cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents; else cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents; + return (cts.bf.iv0 + cts.bf.iv1 + cts.bf.iv2 + cts.bf.iv3) * 4; } |