diff options
Diffstat (limited to 'block-raw-posix.c')
| -rw-r--r-- | block-raw-posix.c | 155 |
1 files changed, 153 insertions, 2 deletions
diff --git a/block-raw-posix.c b/block-raw-posix.c index 1a1a1781bc..be6dd8333f 100644 --- a/block-raw-posix.c +++ b/block-raw-posix.c @@ -55,6 +55,7 @@ #ifdef __FreeBSD__ #include <signal.h> #include <sys/disk.h> +#include <sys/cdio.h> #endif #ifdef __OpenBSD__ @@ -110,6 +111,9 @@ typedef struct BDRVRawState { int fd_got_error; int fd_media_changed; #endif +#if defined(__FreeBSD__) + int cd_open_flags; +#endif uint8_t* aligned_buf; } BDRVRawState; @@ -117,6 +121,12 @@ static int posix_aio_init(void); static int fd_open(BlockDriverState *bs); +#if defined(__FreeBSD__) +static int cd_open(BlockDriverState *bs); +#endif + +static int raw_is_inserted(BlockDriverState *bs); + static int raw_open(BlockDriverState *bs, const char *filename, int flags) { BDRVRawState *s = bs->opaque; @@ -773,6 +783,9 @@ static int64_t raw_getlength(BlockDriverState *bs) int64_t size; #ifdef HOST_BSD struct stat sb; +#ifdef __FreeBSD__ + int reopened = 0; +#endif #endif #ifdef __sun__ struct dk_minfo minfo; @@ -785,6 +798,9 @@ static int64_t raw_getlength(BlockDriverState *bs) return ret; #ifdef HOST_BSD +#ifdef __FreeBSD__ +again: +#endif if (!fstat(fd, &sb) && (S_IFCHR & sb.st_mode)) { #ifdef DIOCGMEDIASIZE if (ioctl(fd, DIOCGMEDIASIZE, (off_t *)&size)) @@ -803,6 +819,19 @@ static int64_t raw_getlength(BlockDriverState *bs) #else size = lseek(fd, 0LL, SEEK_END); #endif +#ifdef __FreeBSD__ + switch(s->type) { + case FTYPE_CD: + /* XXX FreeBSD acd returns UINT_MAX sectors for an empty drive */ + if (size == 2048LL * (unsigned)-1) + size = 0; + /* XXX no disc? maybe we need to reopen... */ + if (size <= 0 && !reopened && cd_open(bs) >= 0) { + reopened = 1; + goto again; + } + } +#endif } else #endif #ifdef __sun__ @@ -993,6 +1022,14 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags) bs->sg = 1; } #endif +#if defined(__FreeBSD__) + if (strstart(filename, "/dev/cd", NULL) || + strstart(filename, "/dev/acd", NULL)) { + s->type = FTYPE_CD; + s->cd_open_flags = open_flags; + } +#endif + s->fd = -1; fd = open(filename, open_flags, 0644); if (fd < 0) { ret = -errno; @@ -1001,6 +1038,11 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags) return ret; } s->fd = fd; +#if defined(__FreeBSD__) + /* make sure the door isnt locked at this time */ + if (s->type == FTYPE_CD) + ioctl (s->fd, CDIOCALLOW); +#endif #if defined(__linux__) /* close fd so that we can reopen it as needed */ if (s->type == FTYPE_FD) { @@ -1167,7 +1209,116 @@ static int raw_ioctl(BlockDriverState *bs, unsigned long int req, void *buf) return ioctl(s->fd, req, buf); } -#else +#elif defined(__FreeBSD__) + +static int fd_open(BlockDriverState *bs) +{ + BDRVRawState *s = bs->opaque; + + /* this is just to ensure s->fd is sane (its called by io ops) */ + if (s->fd >= 0) + return 0; + return -EIO; +} + +static int cd_open(BlockDriverState *bs) +{ +#if defined(__FreeBSD__) + BDRVRawState *s = bs->opaque; + int fd; + + switch(s->type) { + case FTYPE_CD: + /* XXX force reread of possibly changed/newly loaded disc, + * FreeBSD seems to not notice sometimes... */ + if (s->fd >= 0) + close (s->fd); + fd = open(bs->filename, s->cd_open_flags, 0644); + if (fd < 0) { + s->fd = -1; + return -EIO; + } + s->fd = fd; + /* make sure the door isnt locked at this time */ + ioctl (s->fd, CDIOCALLOW); + } +#endif + return 0; +} + +static int raw_is_inserted(BlockDriverState *bs) +{ + BDRVRawState *s = bs->opaque; + + switch(s->type) { + case FTYPE_CD: + return (raw_getlength(bs) > 0); + case FTYPE_FD: + /* XXX handle this */ + /* FALLTHRU */ + default: + return 1; + } +} + +static int raw_media_changed(BlockDriverState *bs) +{ + return -ENOTSUP; +} + +static int raw_eject(BlockDriverState *bs, int eject_flag) +{ + BDRVRawState *s = bs->opaque; + + switch(s->type) { + case FTYPE_CD: + if (s->fd < 0) + return -ENOTSUP; + (void) ioctl (s->fd, CDIOCALLOW); + if (eject_flag) { + if (ioctl (s->fd, CDIOCEJECT) < 0) + perror("CDIOCEJECT"); + } else { + if (ioctl (s->fd, CDIOCCLOSE) < 0) + perror("CDIOCCLOSE"); + } + if (cd_open(bs) < 0) + return -ENOTSUP; + break; + case FTYPE_FD: + /* XXX handle this */ + /* FALLTHRU */ + default: + return -ENOTSUP; + } + return 0; +} + +static int raw_set_locked(BlockDriverState *bs, int locked) +{ + BDRVRawState *s = bs->opaque; + + switch(s->type) { + case FTYPE_CD: + if (s->fd < 0) + return -ENOTSUP; + if (ioctl (s->fd, (locked ? CDIOCPREVENT : CDIOCALLOW)) < 0) { + /* Note: an error can happen if the distribution automatically + mounts the CD-ROM */ + // perror("CDROM_LOCKDOOR"); + } + break; + default: + return -ENOTSUP; + } + return 0; +} + +static int raw_ioctl(BlockDriverState *bs, unsigned long int req, void *buf) +{ + return -ENOTSUP; +} +#else /* !linux && !FreeBSD */ static int fd_open(BlockDriverState *bs) { @@ -1198,7 +1349,7 @@ static int raw_ioctl(BlockDriverState *bs, unsigned long int req, void *buf) { return -ENOTSUP; } -#endif /* !linux */ +#endif /* !linux && !FreeBSD */ static int raw_sg_send_command(BlockDriverState *bs, void *buf, int count) { |