diff options
Diffstat (limited to 'meta/recipes-kernel/cryptodev')
4 files changed, 419 insertions, 0 deletions
diff --git a/meta/recipes-kernel/cryptodev/cryptodev-module_1.9.bb b/meta/recipes-kernel/cryptodev/cryptodev-module_1.9.bb index 6052650c95..ed4327d40d 100644 --- a/meta/recipes-kernel/cryptodev/cryptodev-module_1.9.bb +++ b/meta/recipes-kernel/cryptodev/cryptodev-module_1.9.bb | |||
| @@ -11,6 +11,9 @@ SRC_URI += " \ | |||
| 11 | file://0001-Disable-installing-header-file-provided-by-another-p.patch \ | 11 | file://0001-Disable-installing-header-file-provided-by-another-p.patch \ |
| 12 | file://0001-ioctl.c-Fix-build-with-linux-4.13.patch \ | 12 | file://0001-ioctl.c-Fix-build-with-linux-4.13.patch \ |
| 13 | file://0001-ioctl.c-Fix-build-with-linux-4.17.patch \ | 13 | file://0001-ioctl.c-Fix-build-with-linux-4.17.patch \ |
| 14 | file://0001-refactoring-split-big-function-to-simplify-maintaina.patch \ | ||
| 15 | file://0002-refactoring-relocate-code-to-simplify-later-patches.patch \ | ||
| 16 | file://0003-convert-to-new-AEAD-interface-in-kernels-v4.2.patch \ | ||
| 14 | " | 17 | " |
| 15 | 18 | ||
| 16 | EXTRA_OEMAKE='KERNEL_DIR="${STAGING_KERNEL_DIR}" PREFIX="${D}"' | 19 | EXTRA_OEMAKE='KERNEL_DIR="${STAGING_KERNEL_DIR}" PREFIX="${D}"' |
diff --git a/meta/recipes-kernel/cryptodev/files/0001-refactoring-split-big-function-to-simplify-maintaina.patch b/meta/recipes-kernel/cryptodev/files/0001-refactoring-split-big-function-to-simplify-maintaina.patch new file mode 100644 index 0000000000..f557b5dff6 --- /dev/null +++ b/meta/recipes-kernel/cryptodev/files/0001-refactoring-split-big-function-to-simplify-maintaina.patch | |||
| @@ -0,0 +1,250 @@ | |||
| 1 | From 20dcf071bc3076ee7db9d603cfbe6a06e86c7d5f Mon Sep 17 00:00:00 2001 | ||
| 2 | From: Cristian Stoica <cristian.stoica@nxp.com> | ||
| 3 | Date: Thu, 4 May 2017 15:06:20 +0300 | ||
| 4 | Subject: [PATCH 1/3] refactoring: split big function to simplify maintainance | ||
| 5 | |||
| 6 | The setup of auth_buf in tls and aead is now duplicated but this | ||
| 7 | is temporary and allows necessary corrections for the aead case | ||
| 8 | with v4.2+ kernels. | ||
| 9 | |||
| 10 | Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com> | ||
| 11 | |||
| 12 | Upstream-Status: Backport | ||
| 13 | |||
| 14 | Commit ID: 20dcf071bc3076ee7db9d603c | ||
| 15 | |||
| 16 | Signed-off-by: Hongzhi.Song <hongzhi.song@windriver.com> | ||
| 17 | --- | ||
| 18 | authenc.c | 197 ++++++++++++++++++++++++++++++++++++++++---------------------- | ||
| 19 | 1 file changed, 126 insertions(+), 71 deletions(-) | ||
| 20 | |||
| 21 | diff --git a/authenc.c b/authenc.c | ||
| 22 | index 1bd7377..28eb0f9 100644 | ||
| 23 | --- a/authenc.c | ||
| 24 | +++ b/authenc.c | ||
| 25 | @@ -609,96 +609,151 @@ auth_n_crypt(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop, | ||
| 26 | return 0; | ||
| 27 | } | ||
| 28 | |||
| 29 | -/* This is the main crypto function - zero-copy edition */ | ||
| 30 | -static int | ||
| 31 | -__crypto_auth_run_zc(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop) | ||
| 32 | +static int crypto_auth_zc_srtp(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop) | ||
| 33 | { | ||
| 34 | - struct scatterlist *dst_sg, *auth_sg, *src_sg; | ||
| 35 | + struct scatterlist *dst_sg, *auth_sg; | ||
| 36 | struct crypt_auth_op *caop = &kcaop->caop; | ||
| 37 | - int ret = 0; | ||
| 38 | + int ret; | ||
| 39 | |||
| 40 | - if (caop->flags & COP_FLAG_AEAD_SRTP_TYPE) { | ||
| 41 | - if (unlikely(ses_ptr->cdata.init != 0 && | ||
| 42 | - (ses_ptr->cdata.stream == 0 || | ||
| 43 | - ses_ptr->cdata.aead != 0))) { | ||
| 44 | - derr(0, "Only stream modes are allowed in SRTP mode (but not AEAD)"); | ||
| 45 | - return -EINVAL; | ||
| 46 | - } | ||
| 47 | + if (unlikely(ses_ptr->cdata.init != 0 && | ||
| 48 | + (ses_ptr->cdata.stream == 0 || ses_ptr->cdata.aead != 0))) { | ||
| 49 | + derr(0, "Only stream modes are allowed in SRTP mode (but not AEAD)"); | ||
| 50 | + return -EINVAL; | ||
| 51 | + } | ||
| 52 | |||
| 53 | - ret = get_userbuf_srtp(ses_ptr, kcaop, &auth_sg, &dst_sg); | ||
| 54 | - if (unlikely(ret)) { | ||
| 55 | - derr(1, "get_userbuf_srtp(): Error getting user pages."); | ||
| 56 | - return ret; | ||
| 57 | - } | ||
| 58 | + ret = get_userbuf_srtp(ses_ptr, kcaop, &auth_sg, &dst_sg); | ||
| 59 | + if (unlikely(ret)) { | ||
| 60 | + derr(1, "get_userbuf_srtp(): Error getting user pages."); | ||
| 61 | + return ret; | ||
| 62 | + } | ||
| 63 | |||
| 64 | - ret = srtp_auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 65 | - dst_sg, caop->len); | ||
| 66 | + ret = srtp_auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 67 | + dst_sg, caop->len); | ||
| 68 | |||
| 69 | - release_user_pages(ses_ptr); | ||
| 70 | - } else { /* TLS and normal cases. Here auth data are usually small | ||
| 71 | - * so we just copy them to a free page, instead of trying | ||
| 72 | - * to map them. | ||
| 73 | - */ | ||
| 74 | - unsigned char *auth_buf = NULL; | ||
| 75 | - struct scatterlist tmp; | ||
| 76 | + release_user_pages(ses_ptr); | ||
| 77 | |||
| 78 | - if (unlikely(caop->auth_len > PAGE_SIZE)) { | ||
| 79 | - derr(1, "auth data len is excessive."); | ||
| 80 | - return -EINVAL; | ||
| 81 | - } | ||
| 82 | + return ret; | ||
| 83 | +} | ||
| 84 | |||
| 85 | - auth_buf = (char *)__get_free_page(GFP_KERNEL); | ||
| 86 | - if (unlikely(!auth_buf)) { | ||
| 87 | - derr(1, "unable to get a free page."); | ||
| 88 | - return -ENOMEM; | ||
| 89 | - } | ||
| 90 | +static int crypto_auth_zc_tls(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop) | ||
| 91 | +{ | ||
| 92 | + struct crypt_auth_op *caop = &kcaop->caop; | ||
| 93 | + struct scatterlist *dst_sg, *auth_sg; | ||
| 94 | + unsigned char *auth_buf = NULL; | ||
| 95 | + struct scatterlist tmp; | ||
| 96 | + int ret; | ||
| 97 | |||
| 98 | - if (caop->auth_src && caop->auth_len > 0) { | ||
| 99 | - if (unlikely(copy_from_user(auth_buf, caop->auth_src, caop->auth_len))) { | ||
| 100 | - derr(1, "unable to copy auth data from userspace."); | ||
| 101 | - ret = -EFAULT; | ||
| 102 | - goto free_auth_buf; | ||
| 103 | - } | ||
| 104 | + if (unlikely(ses_ptr->cdata.aead != 0)) { | ||
| 105 | + return -EINVAL; | ||
| 106 | + } | ||
| 107 | + | ||
| 108 | + if (unlikely(caop->auth_len > PAGE_SIZE)) { | ||
| 109 | + derr(1, "auth data len is excessive."); | ||
| 110 | + return -EINVAL; | ||
| 111 | + } | ||
| 112 | + | ||
| 113 | + auth_buf = (char *)__get_free_page(GFP_KERNEL); | ||
| 114 | + if (unlikely(!auth_buf)) { | ||
| 115 | + derr(1, "unable to get a free page."); | ||
| 116 | + return -ENOMEM; | ||
| 117 | + } | ||
| 118 | |||
| 119 | - sg_init_one(&tmp, auth_buf, caop->auth_len); | ||
| 120 | - auth_sg = &tmp; | ||
| 121 | - } else { | ||
| 122 | - auth_sg = NULL; | ||
| 123 | + if (caop->auth_src && caop->auth_len > 0) { | ||
| 124 | + if (unlikely(copy_from_user(auth_buf, caop->auth_src, caop->auth_len))) { | ||
| 125 | + derr(1, "unable to copy auth data from userspace."); | ||
| 126 | + ret = -EFAULT; | ||
| 127 | + goto free_auth_buf; | ||
| 128 | } | ||
| 129 | |||
| 130 | - if (caop->flags & COP_FLAG_AEAD_TLS_TYPE && ses_ptr->cdata.aead == 0) { | ||
| 131 | - ret = get_userbuf_tls(ses_ptr, kcaop, &dst_sg); | ||
| 132 | - if (unlikely(ret)) { | ||
| 133 | - derr(1, "get_userbuf_tls(): Error getting user pages."); | ||
| 134 | - goto free_auth_buf; | ||
| 135 | - } | ||
| 136 | + sg_init_one(&tmp, auth_buf, caop->auth_len); | ||
| 137 | + auth_sg = &tmp; | ||
| 138 | + } else { | ||
| 139 | + auth_sg = NULL; | ||
| 140 | + } | ||
| 141 | |||
| 142 | - ret = tls_auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 143 | - dst_sg, caop->len); | ||
| 144 | - } else { | ||
| 145 | - if (unlikely(ses_ptr->cdata.init == 0 || | ||
| 146 | - (ses_ptr->cdata.stream == 0 && | ||
| 147 | - ses_ptr->cdata.aead == 0))) { | ||
| 148 | - derr(0, "Only stream and AEAD ciphers are allowed for authenc"); | ||
| 149 | - ret = -EINVAL; | ||
| 150 | - goto free_auth_buf; | ||
| 151 | - } | ||
| 152 | + ret = get_userbuf_tls(ses_ptr, kcaop, &dst_sg); | ||
| 153 | + if (unlikely(ret)) { | ||
| 154 | + derr(1, "get_userbuf_tls(): Error getting user pages."); | ||
| 155 | + goto free_auth_buf; | ||
| 156 | + } | ||
| 157 | |||
| 158 | - ret = get_userbuf(ses_ptr, caop->src, caop->len, caop->dst, kcaop->dst_len, | ||
| 159 | - kcaop->task, kcaop->mm, &src_sg, &dst_sg); | ||
| 160 | - if (unlikely(ret)) { | ||
| 161 | - derr(1, "get_userbuf(): Error getting user pages."); | ||
| 162 | - goto free_auth_buf; | ||
| 163 | - } | ||
| 164 | + ret = tls_auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 165 | + dst_sg, caop->len); | ||
| 166 | + release_user_pages(ses_ptr); | ||
| 167 | + | ||
| 168 | +free_auth_buf: | ||
| 169 | + free_page((unsigned long)auth_buf); | ||
| 170 | + return ret; | ||
| 171 | +} | ||
| 172 | + | ||
| 173 | +static int crypto_auth_zc_aead(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop) | ||
| 174 | +{ | ||
| 175 | + struct scatterlist *dst_sg, *auth_sg, *src_sg; | ||
| 176 | + struct crypt_auth_op *caop = &kcaop->caop; | ||
| 177 | + unsigned char *auth_buf = NULL; | ||
| 178 | + struct scatterlist tmp; | ||
| 179 | + int ret; | ||
| 180 | |||
| 181 | - ret = auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 182 | - src_sg, dst_sg, caop->len); | ||
| 183 | + if (unlikely(ses_ptr->cdata.init == 0 || | ||
| 184 | + (ses_ptr->cdata.stream == 0 && ses_ptr->cdata.aead == 0))) { | ||
| 185 | + derr(0, "Only stream and AEAD ciphers are allowed for authenc"); | ||
| 186 | + return -EINVAL; | ||
| 187 | + } | ||
| 188 | + | ||
| 189 | + if (unlikely(caop->auth_len > PAGE_SIZE)) { | ||
| 190 | + derr(1, "auth data len is excessive."); | ||
| 191 | + return -EINVAL; | ||
| 192 | + } | ||
| 193 | + | ||
| 194 | + auth_buf = (char *)__get_free_page(GFP_KERNEL); | ||
| 195 | + if (unlikely(!auth_buf)) { | ||
| 196 | + derr(1, "unable to get a free page."); | ||
| 197 | + return -ENOMEM; | ||
| 198 | + } | ||
| 199 | + | ||
| 200 | + if (caop->auth_src && caop->auth_len > 0) { | ||
| 201 | + if (unlikely(copy_from_user(auth_buf, caop->auth_src, caop->auth_len))) { | ||
| 202 | + derr(1, "unable to copy auth data from userspace."); | ||
| 203 | + ret = -EFAULT; | ||
| 204 | + goto free_auth_buf; | ||
| 205 | } | ||
| 206 | |||
| 207 | - release_user_pages(ses_ptr); | ||
| 208 | + sg_init_one(&tmp, auth_buf, caop->auth_len); | ||
| 209 | + auth_sg = &tmp; | ||
| 210 | + } else { | ||
| 211 | + auth_sg = NULL; | ||
| 212 | + } | ||
| 213 | + | ||
| 214 | + ret = get_userbuf(ses_ptr, caop->src, caop->len, caop->dst, kcaop->dst_len, | ||
| 215 | + kcaop->task, kcaop->mm, &src_sg, &dst_sg); | ||
| 216 | + if (unlikely(ret)) { | ||
| 217 | + derr(1, "get_userbuf(): Error getting user pages."); | ||
| 218 | + goto free_auth_buf; | ||
| 219 | + } | ||
| 220 | + | ||
| 221 | + ret = auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 222 | + src_sg, dst_sg, caop->len); | ||
| 223 | + | ||
| 224 | + release_user_pages(ses_ptr); | ||
| 225 | |||
| 226 | free_auth_buf: | ||
| 227 | - free_page((unsigned long)auth_buf); | ||
| 228 | + free_page((unsigned long)auth_buf); | ||
| 229 | + | ||
| 230 | + return ret; | ||
| 231 | +} | ||
| 232 | + | ||
| 233 | +static int | ||
| 234 | +__crypto_auth_run_zc(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop) | ||
| 235 | +{ | ||
| 236 | + struct crypt_auth_op *caop = &kcaop->caop; | ||
| 237 | + int ret; | ||
| 238 | + | ||
| 239 | + if (caop->flags & COP_FLAG_AEAD_SRTP_TYPE) { | ||
| 240 | + ret = crypto_auth_zc_srtp(ses_ptr, kcaop); | ||
| 241 | + } else if (caop->flags & COP_FLAG_AEAD_TLS_TYPE) { | ||
| 242 | + ret = crypto_auth_zc_tls(ses_ptr, kcaop); | ||
| 243 | + } else { | ||
| 244 | + ret = crypto_auth_zc_aead(ses_ptr, kcaop); | ||
| 245 | } | ||
| 246 | |||
| 247 | return ret; | ||
| 248 | -- | ||
| 249 | 2.11.0 | ||
| 250 | |||
diff --git a/meta/recipes-kernel/cryptodev/files/0002-refactoring-relocate-code-to-simplify-later-patches.patch b/meta/recipes-kernel/cryptodev/files/0002-refactoring-relocate-code-to-simplify-later-patches.patch new file mode 100644 index 0000000000..83d9005a06 --- /dev/null +++ b/meta/recipes-kernel/cryptodev/files/0002-refactoring-relocate-code-to-simplify-later-patches.patch | |||
| @@ -0,0 +1,64 @@ | |||
| 1 | From c2bf0e42b1d9fda60cde4a3a682784d349ef1c0b Mon Sep 17 00:00:00 2001 | ||
| 2 | From: Cristian Stoica <cristian.stoica@nxp.com> | ||
| 3 | Date: Thu, 4 May 2017 15:06:21 +0300 | ||
| 4 | Subject: [PATCH 2/3] refactoring: relocate code to simplify later patches | ||
| 5 | |||
| 6 | This code move will simplify the conversion to new AEAD interface in | ||
| 7 | next patches | ||
| 8 | |||
| 9 | Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com> | ||
| 10 | |||
| 11 | Upstream-Status: Backport | ||
| 12 | |||
| 13 | Commit ID: c2bf0e42b1d9fda | ||
| 14 | |||
| 15 | Signed-off-by: Hongzhi.Song <hongzhi.song@windriver.com> | ||
| 16 | --- | ||
| 17 | authenc.c | 17 +++++++++-------- | ||
| 18 | 1 file changed, 9 insertions(+), 8 deletions(-) | ||
| 19 | |||
| 20 | diff --git a/authenc.c b/authenc.c | ||
| 21 | index 28eb0f9..95727b4 100644 | ||
| 22 | --- a/authenc.c | ||
| 23 | +++ b/authenc.c | ||
| 24 | @@ -711,11 +711,18 @@ static int crypto_auth_zc_aead(struct csession *ses_ptr, struct kernel_crypt_aut | ||
| 25 | return -ENOMEM; | ||
| 26 | } | ||
| 27 | |||
| 28 | + ret = get_userbuf(ses_ptr, caop->src, caop->len, caop->dst, kcaop->dst_len, | ||
| 29 | + kcaop->task, kcaop->mm, &src_sg, &dst_sg); | ||
| 30 | + if (unlikely(ret)) { | ||
| 31 | + derr(1, "get_userbuf(): Error getting user pages."); | ||
| 32 | + goto free_auth_buf; | ||
| 33 | + } | ||
| 34 | + | ||
| 35 | if (caop->auth_src && caop->auth_len > 0) { | ||
| 36 | if (unlikely(copy_from_user(auth_buf, caop->auth_src, caop->auth_len))) { | ||
| 37 | derr(1, "unable to copy auth data from userspace."); | ||
| 38 | ret = -EFAULT; | ||
| 39 | - goto free_auth_buf; | ||
| 40 | + goto free_pages; | ||
| 41 | } | ||
| 42 | |||
| 43 | sg_init_one(&tmp, auth_buf, caop->auth_len); | ||
| 44 | @@ -724,16 +731,10 @@ static int crypto_auth_zc_aead(struct csession *ses_ptr, struct kernel_crypt_aut | ||
| 45 | auth_sg = NULL; | ||
| 46 | } | ||
| 47 | |||
| 48 | - ret = get_userbuf(ses_ptr, caop->src, caop->len, caop->dst, kcaop->dst_len, | ||
| 49 | - kcaop->task, kcaop->mm, &src_sg, &dst_sg); | ||
| 50 | - if (unlikely(ret)) { | ||
| 51 | - derr(1, "get_userbuf(): Error getting user pages."); | ||
| 52 | - goto free_auth_buf; | ||
| 53 | - } | ||
| 54 | - | ||
| 55 | ret = auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 56 | src_sg, dst_sg, caop->len); | ||
| 57 | |||
| 58 | +free_pages: | ||
| 59 | release_user_pages(ses_ptr); | ||
| 60 | |||
| 61 | free_auth_buf: | ||
| 62 | -- | ||
| 63 | 2.11.0 | ||
| 64 | |||
diff --git a/meta/recipes-kernel/cryptodev/files/0003-convert-to-new-AEAD-interface-in-kernels-v4.2.patch b/meta/recipes-kernel/cryptodev/files/0003-convert-to-new-AEAD-interface-in-kernels-v4.2.patch new file mode 100644 index 0000000000..860230778b --- /dev/null +++ b/meta/recipes-kernel/cryptodev/files/0003-convert-to-new-AEAD-interface-in-kernels-v4.2.patch | |||
| @@ -0,0 +1,102 @@ | |||
| 1 | From a705360197260d28535746ae98c461ba2cfb7a9e Mon Sep 17 00:00:00 2001 | ||
| 2 | From: Cristian Stoica <cristian.stoica@nxp.com> | ||
| 3 | Date: Thu, 4 May 2017 15:06:22 +0300 | ||
| 4 | Subject: [PATCH 3/3] convert to new AEAD interface in kernels v4.2+ | ||
| 5 | |||
| 6 | The crypto API for AEAD ciphers changed in recent kernels so that | ||
| 7 | associated data is now part of both source and destination scatter | ||
| 8 | gathers. The source, destination and associated data buffers need | ||
| 9 | to be stiched accordingly for the operations to succeed: | ||
| 10 | |||
| 11 | src_sg: auth_buf + src_buf | ||
| 12 | dst_sg: auth_buf + (dst_buf + tag space) | ||
| 13 | |||
| 14 | This patch fixes a kernel crash observed with cipher-gcm test. | ||
| 15 | |||
| 16 | See also kernel patch: 81c4c35eb61a69c229871c490b011c1171511d5a | ||
| 17 | crypto: ccm - Convert to new AEAD interface | ||
| 18 | |||
| 19 | Reported-by: Phil Sutter <phil@nwl.cc> | ||
| 20 | Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com> | ||
| 21 | |||
| 22 | Upstream-Status: Backport | ||
| 23 | |||
| 24 | Commit ID: a705360197260d2853574 | ||
| 25 | |||
| 26 | Signed-off-by: Hongzhi.Song <hongzhi.song@windriver.com> | ||
| 27 | --- | ||
| 28 | authenc.c | 40 ++++++++++++++++++++++++++++++++++++++-- | ||
| 29 | 1 file changed, 38 insertions(+), 2 deletions(-) | ||
| 30 | |||
| 31 | diff --git a/authenc.c b/authenc.c | ||
| 32 | index 95727b4..692951f 100644 | ||
| 33 | --- a/authenc.c | ||
| 34 | +++ b/authenc.c | ||
| 35 | @@ -688,12 +688,20 @@ free_auth_buf: | ||
| 36 | |||
| 37 | static int crypto_auth_zc_aead(struct csession *ses_ptr, struct kernel_crypt_auth_op *kcaop) | ||
| 38 | { | ||
| 39 | - struct scatterlist *dst_sg, *auth_sg, *src_sg; | ||
| 40 | + struct scatterlist *dst_sg; | ||
| 41 | + struct scatterlist *src_sg; | ||
| 42 | struct crypt_auth_op *caop = &kcaop->caop; | ||
| 43 | unsigned char *auth_buf = NULL; | ||
| 44 | - struct scatterlist tmp; | ||
| 45 | int ret; | ||
| 46 | |||
| 47 | +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)) | ||
| 48 | + struct scatterlist tmp; | ||
| 49 | + struct scatterlist *auth_sg; | ||
| 50 | +#else | ||
| 51 | + struct scatterlist auth1[2]; | ||
| 52 | + struct scatterlist auth2[2]; | ||
| 53 | +#endif | ||
| 54 | + | ||
| 55 | if (unlikely(ses_ptr->cdata.init == 0 || | ||
| 56 | (ses_ptr->cdata.stream == 0 && ses_ptr->cdata.aead == 0))) { | ||
| 57 | derr(0, "Only stream and AEAD ciphers are allowed for authenc"); | ||
| 58 | @@ -718,6 +726,7 @@ static int crypto_auth_zc_aead(struct csession *ses_ptr, struct kernel_crypt_aut | ||
| 59 | goto free_auth_buf; | ||
| 60 | } | ||
| 61 | |||
| 62 | +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)) | ||
| 63 | if (caop->auth_src && caop->auth_len > 0) { | ||
| 64 | if (unlikely(copy_from_user(auth_buf, caop->auth_src, caop->auth_len))) { | ||
| 65 | derr(1, "unable to copy auth data from userspace."); | ||
| 66 | @@ -733,6 +742,33 @@ static int crypto_auth_zc_aead(struct csession *ses_ptr, struct kernel_crypt_aut | ||
| 67 | |||
| 68 | ret = auth_n_crypt(ses_ptr, kcaop, auth_sg, caop->auth_len, | ||
| 69 | src_sg, dst_sg, caop->len); | ||
| 70 | +#else | ||
| 71 | + if (caop->auth_src && caop->auth_len > 0) { | ||
| 72 | + if (unlikely(copy_from_user(auth_buf, caop->auth_src, caop->auth_len))) { | ||
| 73 | + derr(1, "unable to copy auth data from userspace."); | ||
| 74 | + ret = -EFAULT; | ||
| 75 | + goto free_pages; | ||
| 76 | + } | ||
| 77 | + | ||
| 78 | + sg_init_table(auth1, 2); | ||
| 79 | + sg_set_buf(auth1, auth_buf, caop->auth_len); | ||
| 80 | + sg_chain(auth1, 2, src_sg); | ||
| 81 | + | ||
| 82 | + if (src_sg == dst_sg) { | ||
| 83 | + src_sg = auth1; | ||
| 84 | + dst_sg = auth1; | ||
| 85 | + } else { | ||
| 86 | + sg_init_table(auth2, 2); | ||
| 87 | + sg_set_buf(auth2, auth_buf, caop->auth_len); | ||
| 88 | + sg_chain(auth2, 2, dst_sg); | ||
| 89 | + src_sg = auth1; | ||
| 90 | + dst_sg = auth2; | ||
| 91 | + } | ||
| 92 | + } | ||
| 93 | + | ||
| 94 | + ret = auth_n_crypt(ses_ptr, kcaop, NULL, caop->auth_len, | ||
| 95 | + src_sg, dst_sg, caop->len); | ||
| 96 | +#endif | ||
| 97 | |||
| 98 | free_pages: | ||
| 99 | release_user_pages(ses_ptr); | ||
| 100 | -- | ||
| 101 | 2.11.0 | ||
| 102 | |||
