Re: [PATCH 1/4] capability: capability.h whitespace, syntax, andother cleanups

From: Serge E. Hallyn
Date: Wed Apr 23 2008 - 21:54:34 EST

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In reply to: eparis: "[PATCH 4/4] capability: commoncap.c whitespace, syntax, and other cleanups"
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Quoting eparis@xxxxxxxxxx (eparis@xxxxxxxxxx):
> From: Eric Paris <eparis@xxxxxxxxxx>
>
> This patch changes capability.h to fix whitespace and syntax issues. Things that
> are fixed may include (does not not have to include)
>
> whitespace at end of lines
> spaces followed by tabs
> spaces used instead of tabs
> spacing around parenthesis
> location of { around structs and else clauses
> location of * in pointer declarations
> removal of initialization of static data to keep it in the right section
> useless {} in if statemetns
> useless checking for NULL before kfree
> fixing of the indentation depth of switch statements
> no assignments in if statements
> include spaces around , in function calls
> and any number of other things I forgot to mention

Thanks. Looks fine other than the inexplicable (afaics)
jumping of the capability #s by one tab for CAP_NET_ADMIN
and then again from CAP_IPC_OWNER on.

Hmm, well you also made some odd (inconsistent) tab+space choices at and
following cap_clear.

thanks,
-serge

> Signed-off-by: Eric Paris <eparis@xxxxxxxxxx>
> ---
> include/linux/capability.h | 142 ++++++++++++++++++++++----------------------
> 1 files changed, 71 insertions(+), 71 deletions(-)
>
> diff --git a/include/linux/capability.h b/include/linux/capability.h
> index 7d50ff6..63aeeea 100644
> --- a/include/linux/capability.h
> +++ b/include/linux/capability.h
> @@ -28,14 +28,14 @@ struct task_struct;
> library since the draft standard requires the use of malloc/free
> etc.. */
>
> -#define _LINUX_CAPABILITY_VERSION_1 0x19980330
> -#define _LINUX_CAPABILITY_U32S_1 1
> +#define _LINUX_CAPABILITY_VERSION_1 0x19980330
> +#define _LINUX_CAPABILITY_U32S_1 1
>
> -#define _LINUX_CAPABILITY_VERSION_2 0x20071026
> -#define _LINUX_CAPABILITY_U32S_2 2
> +#define _LINUX_CAPABILITY_VERSION_2 0x20071026
> +#define _LINUX_CAPABILITY_U32S_2 2
>
> -#define _LINUX_CAPABILITY_VERSION _LINUX_CAPABILITY_VERSION_2
> -#define _LINUX_CAPABILITY_U32S _LINUX_CAPABILITY_U32S_2
> +#define _LINUX_CAPABILITY_VERSION _LINUX_CAPABILITY_VERSION_2
> +#define _LINUX_CAPABILITY_U32S _LINUX_CAPABILITY_U32S_2
>
> typedef struct __user_cap_header_struct {
> __u32 version;
> @@ -43,9 +43,9 @@ typedef struct __user_cap_header_struct {
> } __user *cap_user_header_t;
>
> typedef struct __user_cap_data_struct {
> - __u32 effective;
> - __u32 permitted;
> - __u32 inheritable;
> + __u32 effective;
> + __u32 permitted;
> + __u32 inheritable;
> } __user *cap_user_data_t;
>
>
> @@ -57,23 +57,23 @@ typedef struct __user_cap_data_struct {
> #define VFS_CAP_FLAGS_EFFECTIVE 0x000001
>
> #define VFS_CAP_REVISION_1 0x01000000
> -#define VFS_CAP_U32_1 1
> -#define XATTR_CAPS_SZ_1 (sizeof(__le32)*(1 + 2*VFS_CAP_U32_1))
> +#define VFS_CAP_U32_1 1
> +#define XATTR_CAPS_SZ_1 (sizeof(__le32)*(1 + 2*VFS_CAP_U32_1))
>
> #define VFS_CAP_REVISION_2 0x02000000
> -#define VFS_CAP_U32_2 2
> -#define XATTR_CAPS_SZ_2 (sizeof(__le32)*(1 + 2*VFS_CAP_U32_2))
> +#define VFS_CAP_U32_2 2
> +#define XATTR_CAPS_SZ_2 (sizeof(__le32)*(1 + 2*VFS_CAP_U32_2))
>
> -#define XATTR_CAPS_SZ XATTR_CAPS_SZ_2
> -#define VFS_CAP_U32 VFS_CAP_U32_2
> +#define XATTR_CAPS_SZ XATTR_CAPS_SZ_2
> +#define VFS_CAP_U32 VFS_CAP_U32_2
> #define VFS_CAP_REVISION VFS_CAP_REVISION_2
>
>
> struct vfs_cap_data {
> - __le32 magic_etc; /* Little endian */
> + __le32 magic_etc; /* Little endian */
> struct {
> - __le32 permitted; /* Little endian */
> - __le32 inheritable; /* Little endian */
> + __le32 permitted; /* Little endian */
> + __le32 inheritable; /* Little endian */
> } data[VFS_CAP_U32];
> };
>
> @@ -83,8 +83,8 @@ typedef struct kernel_cap_struct {
> __u32 cap[_LINUX_CAPABILITY_U32S];
> } kernel_cap_t;
>
> -#define _USER_CAP_HEADER_SIZE (sizeof(struct __user_cap_header_struct))
> -#define _KERNEL_CAP_T_SIZE (sizeof(kernel_cap_t))
> +#define _USER_CAP_HEADER_SIZE (sizeof(struct __user_cap_header_struct))
> +#define _KERNEL_CAP_T_SIZE (sizeof(kernel_cap_t))
>
> #endif
>
> @@ -97,25 +97,25 @@ typedef struct kernel_cap_struct {
> overrides the restriction of changing file ownership and group
> ownership. */
>
> -#define CAP_CHOWN 0
> +#define CAP_CHOWN 0
>
> /* Override all DAC access, including ACL execute access if
> [_POSIX_ACL] is defined. Excluding DAC access covered by
> CAP_LINUX_IMMUTABLE. */
>
> -#define CAP_DAC_OVERRIDE 1
> +#define CAP_DAC_OVERRIDE 1
>
> /* Overrides all DAC restrictions regarding read and search on files
> and directories, including ACL restrictions if [_POSIX_ACL] is
> defined. Excluding DAC access covered by CAP_LINUX_IMMUTABLE. */
>
> -#define CAP_DAC_READ_SEARCH 2
> +#define CAP_DAC_READ_SEARCH 2
>
> /* Overrides all restrictions about allowed operations on files, where
> file owner ID must be equal to the user ID, except where CAP_FSETID
> is applicable. It doesn't override MAC and DAC restrictions. */
>
> -#define CAP_FOWNER 3
> +#define CAP_FOWNER 3
>
> /* Overrides the following restrictions that the effective user ID
> shall match the file owner ID when setting the S_ISUID and S_ISGID
> @@ -124,24 +124,24 @@ typedef struct kernel_cap_struct {
> the S_ISGID bit on that file; that the S_ISUID and S_ISGID bits are
> cleared on successful return from chown(2) (not implemented). */
>
> -#define CAP_FSETID 4
> +#define CAP_FSETID 4
>
> /* Overrides the restriction that the real or effective user ID of a
> process sending a signal must match the real or effective user ID
> of the process receiving the signal. */
>
> -#define CAP_KILL 5
> +#define CAP_KILL 5
>
> /* Allows setgid(2) manipulation */
> /* Allows setgroups(2) */
> /* Allows forged gids on socket credentials passing. */
>
> -#define CAP_SETGID 6
> +#define CAP_SETGID 6
>
> /* Allows set*uid(2) manipulation (including fsuid). */
> /* Allows forged pids on socket credentials passing. */
>
> -#define CAP_SETUID 7
> +#define CAP_SETUID 7
>
>
> /**
> @@ -153,24 +153,24 @@ typedef struct kernel_cap_struct {
> * remove any capability in your permitted set from any pid
> * With VFS support for capabilities (neither of above, but)
> * Add any capability from current's capability bounding set
> - * to the current process' inheritable set
> + * to the current process' inheritable set
> * Allow taking bits out of capability bounding set
> */
>
> -#define CAP_SETPCAP 8
> +#define CAP_SETPCAP 8
>
> /* Allow modification of S_IMMUTABLE and S_APPEND file attributes */
>
> -#define CAP_LINUX_IMMUTABLE 9
> +#define CAP_LINUX_IMMUTABLE 9
>
> /* Allows binding to TCP/UDP sockets below 1024 */
> /* Allows binding to ATM VCIs below 32 */
>
> -#define CAP_NET_BIND_SERVICE 10
> +#define CAP_NET_BIND_SERVICE 10
>
> /* Allow broadcasting, listen to multicast */
>
> -#define CAP_NET_BROADCAST 11
> +#define CAP_NET_BROADCAST 11
>
> /* Allow interface configuration */
> /* Allow administration of IP firewall, masquerading and accounting */
> @@ -186,42 +186,42 @@ typedef struct kernel_cap_struct {
> /* Allow read/write of device-specific registers */
> /* Allow activation of ATM control sockets */
>
> -#define CAP_NET_ADMIN 12
> +#define CAP_NET_ADMIN 12
>
> /* Allow use of RAW sockets */
> /* Allow use of PACKET sockets */
>
> -#define CAP_NET_RAW 13
> +#define CAP_NET_RAW 13
>
> /* Allow locking of shared memory segments */
> /* Allow mlock and mlockall (which doesn't really have anything to do
> with IPC) */
>
> -#define CAP_IPC_LOCK 14
> +#define CAP_IPC_LOCK 14
>
> /* Override IPC ownership checks */
>
> -#define CAP_IPC_OWNER 15
> +#define CAP_IPC_OWNER 15
>
> /* Insert and remove kernel modules - modify kernel without limit */
> -#define CAP_SYS_MODULE 16
> +#define CAP_SYS_MODULE 16
>
> /* Allow ioperm/iopl access */
> /* Allow sending USB messages to any device via /proc/bus/usb */
>
> -#define CAP_SYS_RAWIO 17
> +#define CAP_SYS_RAWIO 17
>
> /* Allow use of chroot() */
>
> -#define CAP_SYS_CHROOT 18
> +#define CAP_SYS_CHROOT 18
>
> /* Allow ptrace() of any process */
>
> -#define CAP_SYS_PTRACE 19
> +#define CAP_SYS_PTRACE 19
>
> /* Allow configuration of process accounting */
>
> -#define CAP_SYS_PACCT 20
> +#define CAP_SYS_PACCT 20
>
> /* Allow configuration of the secure attention key */
> /* Allow administration of the random device */
> @@ -261,11 +261,11 @@ typedef struct kernel_cap_struct {
> /* Allow setting encryption key on loopback filesystem */
> /* Allow setting zone reclaim policy */
>
> -#define CAP_SYS_ADMIN 21
> +#define CAP_SYS_ADMIN 21
>
> /* Allow use of reboot() */
>
> -#define CAP_SYS_BOOT 22
> +#define CAP_SYS_BOOT 22
>
> /* Allow raising priority and setting priority on other (different
> UID) processes */
> @@ -274,7 +274,7 @@ typedef struct kernel_cap_struct {
> process. */
> /* Allow setting cpu affinity on other processes */
>
> -#define CAP_SYS_NICE 23
> +#define CAP_SYS_NICE 23
>
> /* Override resource limits. Set resource limits. */
> /* Override quota limits. */
> @@ -288,32 +288,32 @@ typedef struct kernel_cap_struct {
> /* Override max number of consoles on console allocation */
> /* Override max number of keymaps */
>
> -#define CAP_SYS_RESOURCE 24
> +#define CAP_SYS_RESOURCE 24
>
> /* Allow manipulation of system clock */
> /* Allow irix_stime on mips */
> /* Allow setting the real-time clock */
>
> -#define CAP_SYS_TIME 25
> +#define CAP_SYS_TIME 25
>
> /* Allow configuration of tty devices */
> /* Allow vhangup() of tty */
>
> -#define CAP_SYS_TTY_CONFIG 26
> +#define CAP_SYS_TTY_CONFIG 26
>
> /* Allow the privileged aspects of mknod() */
>
> -#define CAP_MKNOD 27
> +#define CAP_MKNOD 27
>
> /* Allow taking of leases on files */
>
> -#define CAP_LEASE 28
> +#define CAP_LEASE 28
>
> -#define CAP_AUDIT_WRITE 29
> +#define CAP_AUDIT_WRITE 29
>
> -#define CAP_AUDIT_CONTROL 30
> +#define CAP_AUDIT_CONTROL 30
>
> -#define CAP_SETFCAP 31
> +#define CAP_SETFCAP 31
>
> /* Override MAC access.
> The base kernel enforces no MAC policy.
> @@ -321,7 +321,7 @@ typedef struct kernel_cap_struct {
> to implement capability based overrides of that policy, this is
> the capability it should use to do so. */
>
> -#define CAP_MAC_OVERRIDE 32
> +#define CAP_MAC_OVERRIDE 32
>
> /* Allow MAC configuration or state changes.
> The base kernel requires no MAC configuration.
> @@ -330,9 +330,9 @@ typedef struct kernel_cap_struct {
> policy or the data required to maintain it, this is the
> capability it should use to do so. */
>
> -#define CAP_MAC_ADMIN 33
> +#define CAP_MAC_ADMIN 33
>
> -#define CAP_LAST_CAP CAP_MAC_ADMIN
> +#define CAP_LAST_CAP CAP_MAC_ADMIN
>
> #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
>
> @@ -340,8 +340,8 @@ typedef struct kernel_cap_struct {
> * Bit location of each capability (used by user-space library and kernel)
> */
>
> -#define CAP_TO_INDEX(x) ((x) >> 5) /* 1 << 5 == bits in __u32 */
> -#define CAP_TO_MASK(x) (1 << ((x) & 31)) /* mask for indexed __u32 */
> +#define CAP_TO_INDEX(x) ((x) >> 5) /* 1 << 5 == bits in __u32 */
> +#define CAP_TO_MASK(x) (1 << ((x) & 31)) /* mask for indexed __u32 */
>
> #ifdef __KERNEL__
>
> @@ -375,7 +375,7 @@ typedef struct kernel_cap_struct {
>
> #define CAP_INIT_INH_SET CAP_EMPTY_SET
>
> -# define cap_clear(c) do { (c) = __cap_empty_set; } while (0)
> +# define cap_clear(c) do { (c) = __cap_empty_set; } while (0)
> # define cap_set_full(c) do { (c) = __cap_full_set; } while (0)
> # define cap_set_init_eff(c) do { (c) = __cap_init_eff_set; } while (0)
>
> @@ -383,20 +383,20 @@ typedef struct kernel_cap_struct {
> #define cap_lower(c, flag) ((c).cap[CAP_TO_INDEX(flag)] &= ~CAP_TO_MASK(flag))
> #define cap_raised(c, flag) ((c).cap[CAP_TO_INDEX(flag)] & CAP_TO_MASK(flag))
>
> -#define CAP_BOP_ALL(c, a, b, OP) \
> -do { \
> - unsigned __capi; \
> - CAP_FOR_EACH_U32(__capi) { \
> - c.cap[__capi] = a.cap[__capi] OP b.cap[__capi]; \
> - } \
> +#define CAP_BOP_ALL(c, a, b, OP) \
> +do { \
> + unsigned __capi; \
> + CAP_FOR_EACH_U32(__capi) { \
> + c.cap[__capi] = a.cap[__capi] OP b.cap[__capi]; \
> + } \
> } while (0)
>
> -#define CAP_UOP_ALL(c, a, OP) \
> -do { \
> - unsigned __capi; \
> - CAP_FOR_EACH_U32(__capi) { \
> - c.cap[__capi] = OP a.cap[__capi]; \
> - } \
> +#define CAP_UOP_ALL(c, a, OP) \
> +do { \
> + unsigned __capi; \
> + CAP_FOR_EACH_U32(__capi) { \
> + c.cap[__capi] = OP a.cap[__capi]; \
> + } \
> } while (0)
>
> static inline kernel_cap_t cap_combine(const kernel_cap_t a,
> --
> 1.5.2.1
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In reply to: eparis: "[PATCH 4/4] capability: commoncap.c whitespace, syntax, and other cleanups"
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