diff options
Diffstat (limited to 'ext4_utils/wipe.cpp')
| -rw-r--r-- | ext4_utils/wipe.cpp | 86 |
1 files changed, 43 insertions, 43 deletions
diff --git a/ext4_utils/wipe.cpp b/ext4_utils/wipe.cpp index c2db3353..445c9739 100644 --- a/ext4_utils/wipe.cpp +++ b/ext4_utils/wipe.cpp @@ -27,60 +27,60 @@ #include <linux/fs.h> #include <sys/ioctl.h> +#include "helpers.h" + #ifndef BLKDISCARD -#define BLKDISCARD _IO(0x12,119) +#define BLKDISCARD _IO(0x12, 119) #endif #ifndef BLKSECDISCARD -#define BLKSECDISCARD _IO(0x12,125) +#define BLKSECDISCARD _IO(0x12, 125) #endif -int wipe_block_device(int fd, s64 len) -{ - u64 range[2]; - int ret; - - if (!is_block_device_fd(fd)) { - // Wiping only makes sense on a block device. - return 0; - } - - range[0] = 0; - range[1] = len; - ret = ioctl(fd, BLKSECDISCARD, &range); - if (ret < 0) { - range[0] = 0; - range[1] = len; - ret = ioctl(fd, BLKDISCARD, &range); - if (ret < 0) { - warn("Discard failed\n"); - return 1; - } else { - char buf[4096] = {0}; - - if (!android::base::WriteFully(fd, buf, 4096)) { - warn("Writing zeros failed\n"); - return 1; - } - fsync(fd); - warn("Wipe via secure discard failed, used discard instead\n"); - return 0; - } - } - - return 0; +int wipe_block_device(int fd, s64 len) { + u64 range[2]; + int ret; + + if (!is_block_device_fd(fd)) { + // Wiping only makes sense on a block device. + return 0; + } + + range[0] = 0; + range[1] = len; + ret = ioctl(fd, BLKSECDISCARD, &range); + if (ret < 0) { + range[0] = 0; + range[1] = len; + ret = ioctl(fd, BLKDISCARD, &range); + if (ret < 0) { + warn("Discard failed\n"); + return 1; + } else { + char buf[4096] = {0}; + + if (!android::base::WriteFully(fd, buf, 4096)) { + warn("Writing zeros failed\n"); + return 1; + } + fsync(fd); + warn("Wipe via secure discard failed, used discard instead\n"); + return 0; + } + } + + return 0; } -#else /* __linux__ */ +#else /* __linux__ */ #error "Missing block device wiping implementation for this platform!" #endif -#else /* WIPE_IS_SUPPORTED */ +#else /* WIPE_IS_SUPPORTED */ -int wipe_block_device(int fd __attribute__((unused)), s64 len __attribute__((unused))) -{ - /* Wiping is not supported on this platform. */ - return 1; +int wipe_block_device(int fd __attribute__((unused)), s64 len __attribute__((unused))) { + /* Wiping is not supported on this platform. */ + return 1; } -#endif /* WIPE_IS_SUPPORTED */ +#endif /* WIPE_IS_SUPPORTED */ |