| Message ID | 20230505194402.2079010-5-gjoyce@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | generic and PowerPC SED Opal keystore | expand |
On Fri, 2023-05-05 at 14:44 -0500, gjoyce@linux.vnet.ibm.com wrote: > From: Greg Joyce <gjoyce@linux.vnet.ibm.com> > > Changes to the PLPKS API require minor updates to the SED Opal > PLPKS keystore code. > > Signed-off-by: Greg Joyce <gjoyce@linux.vnet.ibm.com> [+ Nayna] This patch will need to be squashed with patch 2. > --- > arch/powerpc/platforms/pseries/Kconfig | 6 +++++ > arch/powerpc/platforms/pseries/Makefile | 2 +- > .../powerpc/platforms/pseries/plpks_sed_ops.c | 22 +++++------------ > -- > block/Kconfig | 1 + > 4 files changed, 13 insertions(+), 18 deletions(-) > > diff --git a/arch/powerpc/platforms/pseries/Kconfig > b/arch/powerpc/platforms/pseries/Kconfig > index 21b22bf16ce6..c2f8a29e7b9b 100644 > --- a/arch/powerpc/platforms/pseries/Kconfig > +++ b/arch/powerpc/platforms/pseries/Kconfig > @@ -163,6 +163,12 @@ config PSERIES_PLPKS > # This option is selected by in-kernel consumers that require > # access to the PKS. > > +config PSERIES_PLPKS_SED > + depends on PPC_PSERIES > + bool > + # This option is selected by in-kernel consumers that require > + # access to the SED PKS keystore. > + > config PAPR_SCM > depends on PPC_PSERIES && MEMORY_HOTPLUG && LIBNVDIMM > tristate "Support for the PAPR Storage Class Memory > interface" > diff --git a/arch/powerpc/platforms/pseries/Makefile > b/arch/powerpc/platforms/pseries/Makefile > index 4242aed0d5d3..1476c5e4433c 100644 > --- a/arch/powerpc/platforms/pseries/Makefile > +++ b/arch/powerpc/platforms/pseries/Makefile > @@ -29,7 +29,7 @@ obj-$(CONFIG_PPC_SVM) += svm.o > obj-$(CONFIG_FA_DUMP) += rtas-fadump.o > obj-$(CONFIG_PSERIES_PLPKS) += plpks.o > obj-$(CONFIG_PPC_SECURE_BOOT) += plpks-secvar.o > -obj-$(CONFIG_PSERIES_PLPKS_SED) += plpks-sed.o > +obj-$(CONFIG_PSERIES_PLPKS_SED) += plpks_sed_ops.o I think you could just use obj-$(CONFIG_BLK_SED_OPAL) and then there wouldn't be a need to introduce a new option? Unless there's going to be a second consumer. > obj-$(CONFIG_SUSPEND) += suspend.o > obj-$(CONFIG_PPC_VAS) += vas.o vas-sysfs.o > > diff --git a/arch/powerpc/platforms/pseries/plpks_sed_ops.c > b/arch/powerpc/platforms/pseries/plpks_sed_ops.c > index 086934b319a9..c1d08075e850 100644 > --- a/arch/powerpc/platforms/pseries/plpks_sed_ops.c > +++ b/arch/powerpc/platforms/pseries/plpks_sed_ops.c > @@ -14,7 +14,7 @@ > #include <linux/string.h> > #include <linux/ioctl.h> > #include <linux/sed-opal-key.h> > -#include "plpks.h" > +#include <asm/plpks.h> > > /* > * structure that contains all SED data > @@ -28,9 +28,6 @@ struct plpks_sed_object_data { > u_char key[32]; > }; > > -#define PLPKS_PLATVAR_POLICY WORLDREADABLE > -#define PLPKS_PLATVAR_OS_COMMON 4 > - > #define PLPKS_SED_OBJECT_DATA_V0 0 > #define PLPKS_SED_MANGLED_LABEL "/default/pri" > #define PLPKS_SED_COMPONENT "sed-opal" > @@ -50,8 +47,8 @@ void plpks_init_var(struct plpks_var *var, char > *keyname) > var->name = PLPKS_SED_MANGLED_LABEL; > var->namelen = strlen(keyname); > } > - var->policy = PLPKS_PLATVAR_POLICY; > - var->os = PLPKS_PLATVAR_OS_COMMON; > + var->policy = PLPKS_WORLDREADABLE; > + var->os = PLPKS_VAR_COMMON; > var->data = NULL; > var->datalen = 0; > var->component = PLPKS_SED_COMPONENT; > @@ -64,28 +61,19 @@ int sed_read_key(char *keyname, char *key, u_int > *keylen) > { > struct plpks_var var; > struct plpks_sed_object_data data; > - u_int offset; > int ret; > u_int len; > > plpks_init_var(&var, keyname); > - var.data = &data; > + var.data = (u8 *)&data; > var.datalen = sizeof(data); > > ret = plpks_read_os_var(&var); > if (ret != 0) > return ret; > > - offset = offsetof(struct plpks_sed_object_data, key); > - if (offset > var.datalen) { > - return -EINVAL; > - } > - > - len = min(be32_to_cpu(data.key_len), *keylen); > - > + len = min_t(u16, be32_to_cpu(data.key_len), var.datalen); > memcpy(key, data.key, len); > - kfree(var.data); > - > key[len] = '\0'; > *keylen = len; > > diff --git a/block/Kconfig b/block/Kconfig > index 76b23114fdeb..75d4db34df5a 100644 > --- a/block/Kconfig > +++ b/block/Kconfig > @@ -182,6 +182,7 @@ config BLK_SED_OPAL > bool "Logic for interfacing with Opal enabled SEDs" > depends on KEYS > select PSERIES_PLPKS if PPC_PSERIES > + select PSERIES_PLPKS_SED if PPC_PSERIES > help > Builds Logic for interfacing with Opal enabled controllers. > Enabling this option enables users to setup/unlock/lock
On Mon, 2023-05-15 at 15:52 +1000, Andrew Donnellan wrote: > On Fri, 2023-05-05 at 14:44 -0500, gjoyce@linux.vnet.ibm.com wrote: > > From: Greg Joyce <gjoyce@linux.vnet.ibm.com> > > > > Changes to the PLPKS API require minor updates to the SED Opal > > PLPKS keystore code. > > > > Signed-off-by: Greg Joyce <gjoyce@linux.vnet.ibm.com> > > [+ Nayna] > > This patch will need to be squashed with patch 2. Thanks. I've squashed the patches and will resend shortly. > > > --- > > arch/powerpc/platforms/pseries/Kconfig | 6 +++++ > > arch/powerpc/platforms/pseries/Makefile | 2 +- > > .../powerpc/platforms/pseries/plpks_sed_ops.c | 22 +++++-------- > > ---- > > -- > > block/Kconfig | 1 + > > 4 files changed, 13 insertions(+), 18 deletions(-) > > > > diff --git a/arch/powerpc/platforms/pseries/Kconfig > > b/arch/powerpc/platforms/pseries/Kconfig > > index 21b22bf16ce6..c2f8a29e7b9b 100644 > > --- a/arch/powerpc/platforms/pseries/Kconfig > > +++ b/arch/powerpc/platforms/pseries/Kconfig > > @@ -163,6 +163,12 @@ config PSERIES_PLPKS > > # This option is selected by in-kernel consumers that > > require > > # access to the PKS. > > > > +config PSERIES_PLPKS_SED > > + depends on PPC_PSERIES > > + bool > > + # This option is selected by in-kernel consumers that > > require > > + # access to the SED PKS keystore. > > + > > config PAPR_SCM > > depends on PPC_PSERIES && MEMORY_HOTPLUG && LIBNVDIMM > > tristate "Support for the PAPR Storage Class Memory > > interface" > > diff --git a/arch/powerpc/platforms/pseries/Makefile > > b/arch/powerpc/platforms/pseries/Makefile > > index 4242aed0d5d3..1476c5e4433c 100644 > > --- a/arch/powerpc/platforms/pseries/Makefile > > +++ b/arch/powerpc/platforms/pseries/Makefile > > @@ -29,7 +29,7 @@ obj-$(CONFIG_PPC_SVM) += svm.o > > obj-$(CONFIG_FA_DUMP) += rtas-fadump.o > > obj-$(CONFIG_PSERIES_PLPKS) += plpks.o > > obj-$(CONFIG_PPC_SECURE_BOOT) += plpks-secvar.o > > -obj-$(CONFIG_PSERIES_PLPKS_SED) += plpks-sed.o > > +obj-$(CONFIG_PSERIES_PLPKS_SED) += plpks_sed_ops.o > > I think you could just use obj-$(CONFIG_BLK_SED_OPAL) and then there > wouldn't be a need to introduce a new option? Unless there's going to > be a second consumer. I was following the model of CONFIG_PPC_SECURE_BOOT. That gives a littler finer control and flexibilty for using SED and PLPKS. This also confines use of CONFIG_BLK_SED_OPAL to the base SED OPAL code. > > > obj-$(CONFIG_SUSPEND) += suspend.o > > obj-$(CONFIG_PPC_VAS) += vas.o vas-sysfs.o > > > > diff --git a/arch/powerpc/platforms/pseries/plpks_sed_ops.c > > b/arch/powerpc/platforms/pseries/plpks_sed_ops.c > > index 086934b319a9..c1d08075e850 100644 > > --- a/arch/powerpc/platforms/pseries/plpks_sed_ops.c > > +++ b/arch/powerpc/platforms/pseries/plpks_sed_ops.c > > @@ -14,7 +14,7 @@ > > #include <linux/string.h> > > #include <linux/ioctl.h> > > #include <linux/sed-opal-key.h> > > -#include "plpks.h" > > +#include <asm/plpks.h> > > > > /* > > * structure that contains all SED data > > @@ -28,9 +28,6 @@ struct plpks_sed_object_data { > > u_char key[32]; > > }; > > > > -#define PLPKS_PLATVAR_POLICY WORLDREADABLE > > -#define PLPKS_PLATVAR_OS_COMMON 4 > > - > > #define PLPKS_SED_OBJECT_DATA_V0 0 > > #define PLPKS_SED_MANGLED_LABEL "/default/pri" > > #define PLPKS_SED_COMPONENT "sed-opal" > > @@ -50,8 +47,8 @@ void plpks_init_var(struct plpks_var *var, char > > *keyname) > > var->name = PLPKS_SED_MANGLED_LABEL; > > var->namelen = strlen(keyname); > > } > > - var->policy = PLPKS_PLATVAR_POLICY; > > - var->os = PLPKS_PLATVAR_OS_COMMON; > > + var->policy = PLPKS_WORLDREADABLE; > > + var->os = PLPKS_VAR_COMMON; > > var->data = NULL; > > var->datalen = 0; > > var->component = PLPKS_SED_COMPONENT; > > @@ -64,28 +61,19 @@ int sed_read_key(char *keyname, char *key, > > u_int > > *keylen) > > { > > struct plpks_var var; > > struct plpks_sed_object_data data; > > - u_int offset; > > int ret; > > u_int len; > > > > plpks_init_var(&var, keyname); > > - var.data = &data; > > + var.data = (u8 *)&data; > > var.datalen = sizeof(data); > > > > ret = plpks_read_os_var(&var); > > if (ret != 0) > > return ret; > > > > - offset = offsetof(struct plpks_sed_object_data, key); > > - if (offset > var.datalen) { > > - return -EINVAL; > > - } > > - > > - len = min(be32_to_cpu(data.key_len), *keylen); > > - > > + len = min_t(u16, be32_to_cpu(data.key_len), var.datalen); > > memcpy(key, data.key, len); > > - kfree(var.data); > > - > > key[len] = '\0'; > > *keylen = len; > > > > diff --git a/block/Kconfig b/block/Kconfig > > index 76b23114fdeb..75d4db34df5a 100644 > > --- a/block/Kconfig > > +++ b/block/Kconfig > > @@ -182,6 +182,7 @@ config BLK_SED_OPAL > > bool "Logic for interfacing with Opal enabled SEDs" > > depends on KEYS > > select PSERIES_PLPKS if PPC_PSERIES > > + select PSERIES_PLPKS_SED if PPC_PSERIES > > help > > Builds Logic for interfacing with Opal enabled controllers. > > Enabling this option enables users to setup/unlock/lock
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 21b22bf16ce6..c2f8a29e7b9b 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -163,6 +163,12 @@ config PSERIES_PLPKS # This option is selected by in-kernel consumers that require # access to the PKS. +config PSERIES_PLPKS_SED + depends on PPC_PSERIES + bool + # This option is selected by in-kernel consumers that require + # access to the SED PKS keystore. + config PAPR_SCM depends on PPC_PSERIES && MEMORY_HOTPLUG && LIBNVDIMM tristate "Support for the PAPR Storage Class Memory interface" diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile index 4242aed0d5d3..1476c5e4433c 100644 --- a/arch/powerpc/platforms/pseries/Makefile +++ b/arch/powerpc/platforms/pseries/Makefile @@ -29,7 +29,7 @@ obj-$(CONFIG_PPC_SVM) += svm.o obj-$(CONFIG_FA_DUMP) += rtas-fadump.o obj-$(CONFIG_PSERIES_PLPKS) += plpks.o obj-$(CONFIG_PPC_SECURE_BOOT) += plpks-secvar.o -obj-$(CONFIG_PSERIES_PLPKS_SED) += plpks-sed.o +obj-$(CONFIG_PSERIES_PLPKS_SED) += plpks_sed_ops.o obj-$(CONFIG_SUSPEND) += suspend.o obj-$(CONFIG_PPC_VAS) += vas.o vas-sysfs.o diff --git a/arch/powerpc/platforms/pseries/plpks_sed_ops.c b/arch/powerpc/platforms/pseries/plpks_sed_ops.c index 086934b319a9..c1d08075e850 100644 --- a/arch/powerpc/platforms/pseries/plpks_sed_ops.c +++ b/arch/powerpc/platforms/pseries/plpks_sed_ops.c @@ -14,7 +14,7 @@ #include <linux/string.h> #include <linux/ioctl.h> #include <linux/sed-opal-key.h> -#include "plpks.h" +#include <asm/plpks.h> /* * structure that contains all SED data @@ -28,9 +28,6 @@ struct plpks_sed_object_data { u_char key[32]; }; -#define PLPKS_PLATVAR_POLICY WORLDREADABLE -#define PLPKS_PLATVAR_OS_COMMON 4 - #define PLPKS_SED_OBJECT_DATA_V0 0 #define PLPKS_SED_MANGLED_LABEL "/default/pri" #define PLPKS_SED_COMPONENT "sed-opal" @@ -50,8 +47,8 @@ void plpks_init_var(struct plpks_var *var, char *keyname) var->name = PLPKS_SED_MANGLED_LABEL; var->namelen = strlen(keyname); } - var->policy = PLPKS_PLATVAR_POLICY; - var->os = PLPKS_PLATVAR_OS_COMMON; + var->policy = PLPKS_WORLDREADABLE; + var->os = PLPKS_VAR_COMMON; var->data = NULL; var->datalen = 0; var->component = PLPKS_SED_COMPONENT; @@ -64,28 +61,19 @@ int sed_read_key(char *keyname, char *key, u_int *keylen) { struct plpks_var var; struct plpks_sed_object_data data; - u_int offset; int ret; u_int len; plpks_init_var(&var, keyname); - var.data = &data; + var.data = (u8 *)&data; var.datalen = sizeof(data); ret = plpks_read_os_var(&var); if (ret != 0) return ret; - offset = offsetof(struct plpks_sed_object_data, key); - if (offset > var.datalen) { - return -EINVAL; - } - - len = min(be32_to_cpu(data.key_len), *keylen); - + len = min_t(u16, be32_to_cpu(data.key_len), var.datalen); memcpy(key, data.key, len); - kfree(var.data); - key[len] = '\0'; *keylen = len; diff --git a/block/Kconfig b/block/Kconfig index 76b23114fdeb..75d4db34df5a 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -182,6 +182,7 @@ config BLK_SED_OPAL bool "Logic for interfacing with Opal enabled SEDs" depends on KEYS select PSERIES_PLPKS if PPC_PSERIES + select PSERIES_PLPKS_SED if PPC_PSERIES help Builds Logic for interfacing with Opal enabled controllers. Enabling this option enables users to setup/unlock/lock