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-rw-r--r--recipes-kernel/cryptodev/sdk_patches/0008-Add-RSA-Key-generation-offloading.patch170
1 files changed, 170 insertions, 0 deletions
diff --git a/recipes-kernel/cryptodev/sdk_patches/0008-Add-RSA-Key-generation-offloading.patch b/recipes-kernel/cryptodev/sdk_patches/0008-Add-RSA-Key-generation-offloading.patch
new file mode 100644
index 0000000..ef4ea09
--- /dev/null
+++ b/recipes-kernel/cryptodev/sdk_patches/0008-Add-RSA-Key-generation-offloading.patch
@@ -0,0 +1,170 @@
1From a2cbb5fcc2d6f3734b5ed2826e828d852cfdf8ba Mon Sep 17 00:00:00 2001
2From: Hou Zhiqiang <B48286@freescale.com>
3Date: Wed, 19 Mar 2014 14:02:46 +0800
4Subject: [PATCH 08/38] Add RSA Key generation offloading
5
6Upstream-status: Pending
7
8Signed-off-by: Hou Zhiqiang <B48286@freescale.com>
9Tested-by: Cristian Stoica <cristian.stoica@freescale.com>
10---
11 cryptlib.c | 1 +
12 crypto/cryptodev.h | 2 ++
13 ioctl.c | 3 +-
14 main.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
15 4 files changed, 84 insertions(+), 2 deletions(-)
16
17diff --git a/cryptlib.c b/cryptlib.c
18index 47cd568..4dd1847 100644
19--- a/cryptlib.c
20+++ b/cryptlib.c
21@@ -441,6 +441,7 @@ int cryptodev_pkc_offload(struct cryptodev_pkc *pkc)
22 struct pkc_request *pkc_req = &pkc->req, *pkc_requested;
23
24 switch (pkc_req->type) {
25+ case RSA_KEYGEN:
26 case RSA_PUB:
27 case RSA_PRIV_FORM1:
28 case RSA_PRIV_FORM2:
29diff --git a/crypto/cryptodev.h b/crypto/cryptodev.h
30index 275a55c..d0cc542 100644
31--- a/crypto/cryptodev.h
32+++ b/crypto/cryptodev.h
33@@ -270,6 +270,7 @@ enum cryptodev_crk_op_t {
34 CRK_DH_COMPUTE_KEY = 4,
35 CRK_DSA_GENERATE_KEY = 5,
36 CRK_DH_GENERATE_KEY = 6,
37+ CRK_RSA_GENERATE_KEY = 7,
38 CRK_ALGORITHM_ALL
39 };
40
41@@ -279,6 +280,7 @@ enum cryptodev_crk_op_t {
42 */
43 #define CRF_MOD_EXP (1 << CRK_MOD_EXP)
44 #define CRF_MOD_EXP_CRT (1 << CRK_MOD_EXP_CRT)
45+#define CRF_RSA_GENERATE_KEY (1 << CRK_RSA_GENERATE_KEY)
46 #define CRF_DSA_SIGN (1 << CRK_DSA_SIGN)
47 #define CRF_DSA_VERIFY (1 << CRK_DSA_VERIFY)
48 #define CRF_DH_COMPUTE_KEY (1 << CRK_DH_COMPUTE_KEY)
49diff --git a/ioctl.c b/ioctl.c
50index e4e16a8..3762a47 100644
51--- a/ioctl.c
52+++ b/ioctl.c
53@@ -957,7 +957,8 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
54 case CIOCASYMFEAT:
55 return put_user(CRF_MOD_EXP_CRT | CRF_MOD_EXP | CRF_DSA_SIGN |
56 CRF_DSA_VERIFY | CRF_DH_COMPUTE_KEY |
57- CRF_DSA_GENERATE_KEY | CRF_DH_GENERATE_KEY, p);
58+ CRF_DSA_GENERATE_KEY | CRF_DH_GENERATE_KEY |
59+ CRF_RSA_GENERATE_KEY, p);
60 case CRIOGET:
61 fd = clonefd(filp);
62 ret = put_user(fd, p);
63diff --git a/main.c b/main.c
64index 2747706..14dcf40 100644
65--- a/main.c
66+++ b/main.c
67@@ -346,6 +346,82 @@ err:
68 return rc;
69 }
70
71+int crypto_kop_rsa_keygen(struct cryptodev_pkc *pkc)
72+{
73+ struct kernel_crypt_kop *kop = &pkc->kop;
74+ struct crypt_kop *cop = &kop->kop;
75+ struct pkc_request *pkc_req;
76+ struct rsa_keygen_req_s *key_req;
77+ int rc, buf_size;
78+ uint8_t *buf;
79+
80+ if (!cop->crk_param[0].crp_nbits || !cop->crk_param[1].crp_nbits ||
81+ !cop->crk_param[2].crp_nbits || !cop->crk_param[3].crp_nbits ||
82+ !cop->crk_param[4].crp_nbits || !cop->crk_param[5].crp_nbits ||
83+ !cop->crk_param[6].crp_nbits)
84+ return -EINVAL;
85+
86+ pkc_req = &pkc->req;
87+ pkc_req->type = RSA_KEYGEN;
88+ key_req = &pkc_req->req_u.rsa_keygen;
89+ key_req->n_len = (cop->crk_param[2].crp_nbits + 7)/8;
90+ key_req->p_len = (cop->crk_param[0].crp_nbits + 7) / 8;
91+ key_req->q_len = (cop->crk_param[1].crp_nbits + 7) / 8;
92+ key_req->n_len = (cop->crk_param[2].crp_nbits + 7) / 8;
93+ key_req->d_len = (cop->crk_param[3].crp_nbits + 7) / 8;
94+ key_req->dp_len = (cop->crk_param[4].crp_nbits + 7) / 8;
95+ key_req->dq_len = (cop->crk_param[5].crp_nbits + 7) / 8;
96+ key_req->c_len = (cop->crk_param[6].crp_nbits + 7) / 8;
97+
98+ buf_size = key_req->p_len + key_req->q_len + key_req->n_len +
99+ key_req->d_len + key_req->dp_len +
100+ key_req->dq_len + key_req->c_len;
101+
102+ buf = kmalloc(buf_size, GFP_DMA);
103+ if (!buf)
104+ return -ENOMEM;
105+ key_req->p = buf;
106+ key_req->q = key_req->p + key_req->p_len;
107+ key_req->n = key_req->q + key_req->q_len;
108+ key_req->d = key_req->n + key_req->n_len;
109+ key_req->dp = key_req->d + key_req->d_len;
110+ key_req->dq = key_req->dp + key_req->dp_len;
111+ key_req->c = key_req->dq + key_req->dq_len;
112+
113+ rc = cryptodev_pkc_offload(pkc);
114+
115+ if (pkc->type == SYNCHRONOUS) {
116+ if (rc)
117+ goto err;
118+
119+ copy_to_user(cop->crk_param[0].crp_p,
120+ key_req->p, key_req->p_len);
121+ copy_to_user(cop->crk_param[1].crp_p,
122+ key_req->q, key_req->q_len);
123+ copy_to_user(cop->crk_param[2].crp_p,
124+ key_req->n, key_req->n_len);
125+ copy_to_user(cop->crk_param[3].crp_p,
126+ key_req->d, key_req->d_len);
127+ copy_to_user(cop->crk_param[4].crp_p,
128+ key_req->dp, key_req->dp_len);
129+ copy_to_user(cop->crk_param[5].crp_p,
130+ key_req->dq, key_req->dq_len);
131+ copy_to_user(cop->crk_param[6].crp_p,
132+ key_req->c, key_req->c_len);
133+ } else {
134+ if (rc != -EINPROGRESS && !rc) {
135+ printk("%s: Failed\n", __func__);
136+ goto err;
137+ }
138+ pkc->cookie = buf;
139+ return rc;
140+ }
141+err:
142+ kfree(buf);
143+ return rc;
144+
145+}
146+
147 int crypto_kop_keygen(struct cryptodev_pkc *pkc)
148 {
149 struct kernel_crypt_kop *kop = &pkc->kop;
150@@ -385,7 +461,6 @@ int crypto_kop_keygen(struct cryptodev_pkc *pkc)
151 buf = kmalloc(buf_size, GFP_DMA);
152 if (!buf)
153 return -ENOMEM;
154-
155 key_req->q = buf;
156 key_req->r = key_req->q + key_req->q_len;
157 key_req->g = key_req->r + key_req->r_len;
158@@ -650,6 +725,9 @@ int crypto_run_asym(struct cryptodev_pkc *pkc)
159 goto err;
160 ret = crypto_kop_keygen(pkc);
161 break;
162+ case CRK_RSA_GENERATE_KEY:
163+ ret = crypto_kop_rsa_keygen(pkc);
164+ break;
165 }
166 err:
167 return ret;
168--
1692.7.0
170
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