From fcae40c99fb3d09f4407f549a7f17761abe5e1bc Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Tue, 24 Apr 2018 20:06:08 +0800 Subject: ALSA: Replace timespec with timespec64 Since timespec is not year 2038 safe on 32bit system, and we need to convert all timespec variables to timespec64 type for sound subsystem. This patch is used to do preparation for following patches, that will convert all structures defined in uapi/sound/asound.h to use 64-bit time_t. Signed-off-by: Baolin Wang Signed-off-by: Arnd Bergmann --- include/sound/pcm.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include/sound/pcm.h') diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 8a89fa6fdd5e..cb407fade933 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -62,7 +62,7 @@ struct snd_pcm_ops { int (*sync_stop)(struct snd_pcm_substream *substream); snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream); int (*get_time_info)(struct snd_pcm_substream *substream, - struct timespec *system_ts, struct timespec *audio_ts, + struct timespec64 *system_ts, struct timespec64 *audio_ts, struct snd_pcm_audio_tstamp_config *audio_tstamp_config, struct snd_pcm_audio_tstamp_report *audio_tstamp_report); int (*fill_silence)(struct snd_pcm_substream *substream, int channel, @@ -343,7 +343,7 @@ static inline void snd_pcm_pack_audio_tstamp_report(__u32 *data, __u32 *accuracy struct snd_pcm_runtime { /* -- Status -- */ struct snd_pcm_substream *trigger_master; - struct timespec trigger_tstamp; /* trigger timestamp */ + struct timespec64 trigger_tstamp; /* trigger timestamp */ bool trigger_tstamp_latched; /* trigger timestamp latched in low-level driver/hardware */ int overrange; snd_pcm_uframes_t avail_max; @@ -421,7 +421,7 @@ struct snd_pcm_runtime { /* -- audio timestamp config -- */ struct snd_pcm_audio_tstamp_config audio_tstamp_config; struct snd_pcm_audio_tstamp_report audio_tstamp_report; - struct timespec driver_tstamp; + struct timespec64 driver_tstamp; #if IS_ENABLED(CONFIG_SND_PCM_OSS) /* -- OSS things -- */ @@ -1155,22 +1155,22 @@ static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substrea } /** - * snd_pcm_gettime - Fill the timespec depending on the timestamp mode + * snd_pcm_gettime - Fill the timespec64 depending on the timestamp mode * @runtime: PCM runtime instance - * @tv: timespec to fill + * @tv: timespec64 to fill */ static inline void snd_pcm_gettime(struct snd_pcm_runtime *runtime, - struct timespec *tv) + struct timespec64 *tv) { switch (runtime->tstamp_type) { case SNDRV_PCM_TSTAMP_TYPE_MONOTONIC: - ktime_get_ts(tv); + ktime_get_ts64(tv); break; case SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW: - getrawmonotonic(tv); + ktime_get_raw_ts64(tv); break; default: - getnstimeofday(tv); + ktime_get_real_ts64(tv); break; } } -- cgit v1.2.3 From 3ddee7f88aaf2dee38f7016ac8fd48dd9fdb43e3 Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Tue, 24 Apr 2018 20:06:11 +0800 Subject: ALSA: Avoid using timespec for struct snd_pcm_status The struct snd_pcm_status will use 'timespec' type variables to record timestamp, which is not year 2038 safe on 32bits system. Userspace will use SNDRV_PCM_IOCTL_STATUS and SNDRV_PCM_IOCTL_STATUS_EXT as commands to issue ioctl() to fill the 'snd_pcm_status' structure in userspace. The command number is always defined through _IOR/_IOW/IORW, so when userspace changes the definition of 'struct timespec' to use 64-bit types, the command number also changes. Thus in the kernel, we now need to define two versions of each such ioctl and corresponding ioctl commands to handle 32bit time_t and 64bit time_t in native mode: struct snd_pcm_status32 { ...... s32 trigger_tstamp_sec; s32 trigger_tstamp_nsec; ...... s32 audio_tstamp_sec; s32 audio_tstamp_nsec; ...... }; struct snd_pcm_status64 { ...... s32 trigger_tstamp_sec; s32 trigger_tstamp_nsec; ...... s32 audio_tstamp_sec; s32 audio_tstamp_nsec; ...... }; Moreover in compat file, we renamed or introduced new structures to handle 32bit/64bit time_t in compatible mode. The 'struct snd_pcm_status32' and snd_pcm_status_user32() are used to handle 32bit time_t in compat mode. 'struct compat_snd_pcm_status64' and snd_pcm_status_user_compat64() are used to handle 64bit time_t. The implicit padding before timespec is made explicit to avoid incompatible structure layout between 32-bit and 64-bit x86 due to the different alignment requirements, and the snd_pcm_status structure is now hidden from the kernel to avoid relying on the timespec definitio definitionn Finally we can replace SNDRV_PCM_IOCTL_STATUS and SNDRV_PCM_IOCTL_STATUS_EXT with new commands and introduce new functions to fill new 'struct snd_pcm_status64' instead of using unsafe 'struct snd_pcm_status'. Then in future, the new commands can be matched when userspace changes 'timespec' to 64bit type to make a size change of 'struct snd_pcm_status'. When glibc changes time_t to 64-bit, any recompiled program will issue ioctl commands that the kernel does not understand without this patch. Signed-off-by: Baolin Wang Signed-off-by: Arnd Bergmann --- include/sound/pcm.h | 56 +++++++++++++++- include/uapi/sound/asound.h | 6 ++ sound/core/pcm.c | 12 ++-- sound/core/pcm_compat.c | 154 +++++++++++++++----------------------------- sound/core/pcm_native.c | 96 ++++++++++++++++++++++----- 5 files changed, 198 insertions(+), 126 deletions(-) (limited to 'include/sound/pcm.h') diff --git a/include/sound/pcm.h b/include/sound/pcm.h index cb407fade933..5a31525e2df6 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -44,6 +44,7 @@ struct snd_pcm_hardware { size_t fifo_size; /* fifo size in bytes */ }; +struct snd_pcm_status64; struct snd_pcm_substream; struct snd_pcm_audio_tstamp_config; /* definitions further down */ @@ -558,8 +559,8 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree); int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info); int snd_pcm_info_user(struct snd_pcm_substream *substream, struct snd_pcm_info __user *info); -int snd_pcm_status(struct snd_pcm_substream *substream, - struct snd_pcm_status *status); +int snd_pcm_status64(struct snd_pcm_substream *substream, + struct snd_pcm_status64 *status); int snd_pcm_start(struct snd_pcm_substream *substream); int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status); int snd_pcm_drain_done(struct snd_pcm_substream *substream); @@ -1422,4 +1423,55 @@ static inline u64 pcm_format_to_bits(snd_pcm_format_t pcm_format) #define pcm_dbg(pcm, fmt, args...) \ dev_dbg((pcm)->card->dev, fmt, ##args) +struct snd_pcm_status64 { + snd_pcm_state_t state; /* stream state */ + u8 rsvd[4]; + s64 trigger_tstamp_sec; /* time when stream was started/stopped/paused */ + s64 trigger_tstamp_nsec; + s64 tstamp_sec; /* reference timestamp */ + s64 tstamp_nsec; + snd_pcm_uframes_t appl_ptr; /* appl ptr */ + snd_pcm_uframes_t hw_ptr; /* hw ptr */ + snd_pcm_sframes_t delay; /* current delay in frames */ + snd_pcm_uframes_t avail; /* number of frames available */ + snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ + snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ + snd_pcm_state_t suspended_state; /* suspended stream state */ + __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ + s64 audio_tstamp_sec; /* sample counter, wall clock, PHC or on-demand sync'ed */ + s64 audio_tstamp_nsec; + s64 driver_tstamp_sec; /* useful in case reference system tstamp is reported with delay */ + s64 driver_tstamp_nsec; + __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ + unsigned char reserved[52-4*sizeof(s64)]; /* must be filled with zero */ +}; + +#define SNDRV_PCM_IOCTL_STATUS64 _IOR('A', 0x20, struct snd_pcm_status64) +#define SNDRV_PCM_IOCTL_STATUS_EXT64 _IOWR('A', 0x24, struct snd_pcm_status64) + +struct snd_pcm_status32 { + s32 state; /* stream state */ + s32 trigger_tstamp_sec; /* time when stream was started/stopped/paused */ + s32 trigger_tstamp_nsec; + s32 tstamp_sec; /* reference timestamp */ + s32 tstamp_nsec; + u32 appl_ptr; /* appl ptr */ + u32 hw_ptr; /* hw ptr */ + s32 delay; /* current delay in frames */ + u32 avail; /* number of frames available */ + u32 avail_max; /* max frames available on hw since last status */ + u32 overrange; /* count of ADC (capture) overrange detections from last status */ + s32 suspended_state; /* suspended stream state */ + u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ + s32 audio_tstamp_sec; /* sample counter, wall clock, PHC or on-demand sync'ed */ + s32 audio_tstamp_nsec; + s32 driver_tstamp_sec; /* useful in case reference system tstamp is reported with delay */ + s32 driver_tstamp_nsec; + u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ + unsigned char reserved[52-4*sizeof(s32)]; /* must be filled with zero */ +}; + +#define SNDRV_PCM_IOCTL_STATUS32 _IOR('A', 0x20, struct snd_pcm_status32) +#define SNDRV_PCM_IOCTL_STATUS_EXT32 _IOWR('A', 0x24, struct snd_pcm_status32) + #endif /* __SOUND_PCM_H */ diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h index 40a23d8418fe..d2c88c098b20 100644 --- a/include/uapi/sound/asound.h +++ b/include/uapi/sound/asound.h @@ -456,8 +456,13 @@ enum { SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED }; +#ifndef __KERNEL__ +/* explicit padding avoids incompatibility between i386 and x86-64 */ +typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)] __time_pad; + struct snd_pcm_status { snd_pcm_state_t state; /* stream state */ + __time_pad pad1; /* align to timespec */ struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ struct timespec tstamp; /* reference timestamp */ snd_pcm_uframes_t appl_ptr; /* appl ptr */ @@ -473,6 +478,7 @@ struct snd_pcm_status { __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ }; +#endif struct snd_pcm_mmap_status { snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 9a72d641743d..85db55ea49fd 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -443,7 +443,7 @@ static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry, { struct snd_pcm_substream *substream = entry->private_data; struct snd_pcm_runtime *runtime; - struct snd_pcm_status status; + struct snd_pcm_status64 status; int err; mutex_lock(&substream->pcm->open_mutex); @@ -453,17 +453,17 @@ static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry, goto unlock; } memset(&status, 0, sizeof(status)); - err = snd_pcm_status(substream, &status); + err = snd_pcm_status64(substream, &status); if (err < 0) { snd_iprintf(buffer, "error %d\n", err); goto unlock; } snd_iprintf(buffer, "state: %s\n", snd_pcm_state_name(status.state)); snd_iprintf(buffer, "owner_pid : %d\n", pid_vnr(substream->pid)); - snd_iprintf(buffer, "trigger_time: %ld.%09ld\n", - status.trigger_tstamp.tv_sec, status.trigger_tstamp.tv_nsec); - snd_iprintf(buffer, "tstamp : %ld.%09ld\n", - status.tstamp.tv_sec, status.tstamp.tv_nsec); + snd_iprintf(buffer, "trigger_time: %lld.%09lld\n", + status.trigger_tstamp_sec, status.trigger_tstamp_nsec); + snd_iprintf(buffer, "tstamp : %lld.%09lld\n", + status.tstamp_sec, status.tstamp_nsec); snd_iprintf(buffer, "delay : %ld\n", status.delay); snd_iprintf(buffer, "avail : %ld\n", status.avail); snd_iprintf(buffer, "avail_max : %ld\n", status.avail_max); diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c index 6f9003b1869a..2671658442ea 100644 --- a/sound/core/pcm_compat.c +++ b/sound/core/pcm_compat.c @@ -168,73 +168,13 @@ static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, snd_pcm_channel_info_user(s, p) #endif /* CONFIG_X86_X32 */ -struct snd_pcm_status32 { +struct compat_snd_pcm_status64 { s32 state; - struct compat_timespec trigger_tstamp; - struct compat_timespec tstamp; - u32 appl_ptr; - u32 hw_ptr; - s32 delay; - u32 avail; - u32 avail_max; - u32 overrange; - s32 suspended_state; - u32 audio_tstamp_data; - struct compat_timespec audio_tstamp; - struct compat_timespec driver_tstamp; - u32 audio_tstamp_accuracy; - unsigned char reserved[52-2*sizeof(struct compat_timespec)]; -} __attribute__((packed)); - - -static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream, - struct snd_pcm_status32 __user *src, - bool ext) -{ - struct snd_pcm_status status; - int err; - - memset(&status, 0, sizeof(status)); - /* - * with extension, parameters are read/write, - * get audio_tstamp_data from user, - * ignore rest of status structure - */ - if (ext && get_user(status.audio_tstamp_data, - (u32 __user *)(&src->audio_tstamp_data))) - return -EFAULT; - err = snd_pcm_status(substream, &status); - if (err < 0) - return err; - - if (clear_user(src, sizeof(*src))) - return -EFAULT; - if (put_user(status.state, &src->state) || - compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || - compat_put_timespec(&status.tstamp, &src->tstamp) || - put_user(status.appl_ptr, &src->appl_ptr) || - put_user(status.hw_ptr, &src->hw_ptr) || - put_user(status.delay, &src->delay) || - put_user(status.avail, &src->avail) || - put_user(status.avail_max, &src->avail_max) || - put_user(status.overrange, &src->overrange) || - put_user(status.suspended_state, &src->suspended_state) || - put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || - compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) || - compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) || - put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) - return -EFAULT; - - return err; -} - -#ifdef CONFIG_X86_X32 -/* X32 ABI has 64bit timespec and 64bit alignment */ -struct snd_pcm_status_x32 { - s32 state; - u32 rsvd; /* alignment */ - struct timespec trigger_tstamp; - struct timespec tstamp; + u8 rsvd[4]; /* alignment */ + s64 trigger_tstamp_sec; + s64 trigger_tstamp_nsec; + s64 tstamp_sec; + s64 tstamp_nsec; u32 appl_ptr; u32 hw_ptr; s32 delay; @@ -243,22 +183,26 @@ struct snd_pcm_status_x32 { u32 overrange; s32 suspended_state; u32 audio_tstamp_data; - struct timespec audio_tstamp; - struct timespec driver_tstamp; + s64 audio_tstamp_sec; + s64 audio_tstamp_nsec; + s64 driver_tstamp_sec; + s64 driver_tstamp_nsec; u32 audio_tstamp_accuracy; - unsigned char reserved[52-2*sizeof(struct timespec)]; + unsigned char reserved[52-4*sizeof(s64)]; } __packed; #define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst)) -static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream, - struct snd_pcm_status_x32 __user *src, - bool ext) +static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream, + struct compat_snd_pcm_status64 __user *src, + bool ext) { - struct snd_pcm_status status; + struct snd_pcm_status64 status; + struct compat_snd_pcm_status64 compat_status64; int err; memset(&status, 0, sizeof(status)); + memset(&compat_status64, 0, sizeof(compat_status64)); /* * with extension, parameters are read/write, * get audio_tstamp_data from user, @@ -267,31 +211,39 @@ static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream, if (ext && get_user(status.audio_tstamp_data, (u32 __user *)(&src->audio_tstamp_data))) return -EFAULT; - err = snd_pcm_status(substream, &status); + err = snd_pcm_status64(substream, &status); if (err < 0) return err; if (clear_user(src, sizeof(*src))) return -EFAULT; - if (put_user(status.state, &src->state) || - put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || - put_timespec(&status.tstamp, &src->tstamp) || - put_user(status.appl_ptr, &src->appl_ptr) || - put_user(status.hw_ptr, &src->hw_ptr) || - put_user(status.delay, &src->delay) || - put_user(status.avail, &src->avail) || - put_user(status.avail_max, &src->avail_max) || - put_user(status.overrange, &src->overrange) || - put_user(status.suspended_state, &src->suspended_state) || - put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || - put_timespec(&status.audio_tstamp, &src->audio_tstamp) || - put_timespec(&status.driver_tstamp, &src->driver_tstamp) || - put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) + + compat_status64 = (struct compat_snd_pcm_status64) { + .state = status.state, + .trigger_tstamp_sec = status.trigger_tstamp_sec, + .trigger_tstamp_nsec = status.trigger_tstamp_nsec, + .tstamp_sec = status.tstamp_sec, + .tstamp_nsec = status.tstamp_nsec, + .appl_ptr = status.appl_ptr, + .hw_ptr = status.hw_ptr, + .delay = status.delay, + .avail = status.avail, + .avail_max = status.avail_max, + .overrange = status.overrange, + .suspended_state = status.suspended_state, + .audio_tstamp_data = status.audio_tstamp_data, + .audio_tstamp_sec = status.audio_tstamp_sec, + .audio_tstamp_nsec = status.audio_tstamp_nsec, + .driver_tstamp_sec = status.audio_tstamp_sec, + .driver_tstamp_nsec = status.audio_tstamp_nsec, + .audio_tstamp_accuracy = status.audio_tstamp_accuracy, + }; + + if (copy_to_user(src, &compat_status64, sizeof(compat_status64))) return -EFAULT; return err; } -#endif /* CONFIG_X86_X32 */ /* both for HW_PARAMS and HW_REFINE */ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, @@ -616,8 +568,8 @@ enum { SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), - SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32), - SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32), + SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), + SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), @@ -627,10 +579,10 @@ enum { SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32), + SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), + SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), #ifdef CONFIG_X86_X32 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), - SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32), - SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32), SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), #endif /* CONFIG_X86_X32 */ }; @@ -680,10 +632,10 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); case SNDRV_PCM_IOCTL_SW_PARAMS32: return snd_pcm_ioctl_sw_params_compat(substream, argp); - case SNDRV_PCM_IOCTL_STATUS32: - return snd_pcm_status_user_compat(substream, argp, false); - case SNDRV_PCM_IOCTL_STATUS_EXT32: - return snd_pcm_status_user_compat(substream, argp, true); + case SNDRV_PCM_IOCTL_STATUS_COMPAT32: + return snd_pcm_status_user32(substream, argp, false); + case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: + return snd_pcm_status_user32(substream, argp, true); case SNDRV_PCM_IOCTL_SYNC_PTR32: return snd_pcm_ioctl_sync_ptr_compat(substream, argp); case SNDRV_PCM_IOCTL_CHANNEL_INFO32: @@ -702,11 +654,11 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l return snd_pcm_ioctl_rewind_compat(substream, argp); case SNDRV_PCM_IOCTL_FORWARD32: return snd_pcm_ioctl_forward_compat(substream, argp); + case SNDRV_PCM_IOCTL_STATUS_COMPAT64: + return snd_pcm_status_user_compat64(substream, argp, false); + case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: + return snd_pcm_status_user_compat64(substream, argp, true); #ifdef CONFIG_X86_X32 - case SNDRV_PCM_IOCTL_STATUS_X32: - return snd_pcm_status_user_x32(substream, argp, false); - case SNDRV_PCM_IOCTL_STATUS_EXT_X32: - return snd_pcm_status_user_x32(substream, argp, true); case SNDRV_PCM_IOCTL_SYNC_PTR_X32: return snd_pcm_ioctl_sync_ptr_x32(substream, argp); case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 67fe14bad7cb..ad4cf1e3e3bd 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -891,8 +891,8 @@ snd_pcm_calc_delay(struct snd_pcm_substream *substream) return delay + substream->runtime->delay; } -int snd_pcm_status(struct snd_pcm_substream *substream, - struct snd_pcm_status *status) +int snd_pcm_status64(struct snd_pcm_substream *substream, + struct snd_pcm_status64 *status) { struct snd_pcm_runtime *runtime = substream->runtime; @@ -918,14 +918,22 @@ int snd_pcm_status(struct snd_pcm_substream *substream, status->suspended_state = runtime->status->suspended_state; if (status->state == SNDRV_PCM_STATE_OPEN) goto _end; - status->trigger_tstamp = timespec64_to_timespec(runtime->trigger_tstamp); + status->trigger_tstamp_sec = runtime->trigger_tstamp.tv_sec; + status->trigger_tstamp_nsec = runtime->trigger_tstamp.tv_nsec; if (snd_pcm_running(substream)) { snd_pcm_update_hw_ptr(substream); if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) { - status->tstamp = runtime->status->tstamp; - status->driver_tstamp = timespec64_to_timespec(runtime->driver_tstamp); - status->audio_tstamp = - runtime->status->audio_tstamp; + status->tstamp_sec = runtime->status->tstamp.tv_sec; + status->tstamp_nsec = + runtime->status->tstamp.tv_nsec; + status->driver_tstamp_sec = + runtime->driver_tstamp.tv_sec; + status->driver_tstamp_nsec = + runtime->driver_tstamp.tv_nsec; + status->audio_tstamp_sec = + runtime->status->audio_tstamp.tv_sec; + status->audio_tstamp_nsec = + runtime->status->audio_tstamp.tv_nsec; if (runtime->audio_tstamp_report.valid == 1) /* backwards compatibility, no report provided in COMPAT mode */ snd_pcm_pack_audio_tstamp_report(&status->audio_tstamp_data, @@ -940,7 +948,8 @@ int snd_pcm_status(struct snd_pcm_substream *substream, struct timespec64 tstamp; snd_pcm_gettime(runtime, &tstamp); - status->tstamp = timespec64_to_timespec(tstamp); + status->tstamp_sec = tstamp.tv_sec; + status->tstamp_nsec = tstamp.tv_nsec; } } _tstamp_end: @@ -958,11 +967,11 @@ int snd_pcm_status(struct snd_pcm_substream *substream, return 0; } -static int snd_pcm_status_user(struct snd_pcm_substream *substream, - struct snd_pcm_status __user * _status, - bool ext) +static int snd_pcm_status_user64(struct snd_pcm_substream *substream, + struct snd_pcm_status64 __user * _status, + bool ext) { - struct snd_pcm_status status; + struct snd_pcm_status64 status; int res; memset(&status, 0, sizeof(status)); @@ -974,7 +983,7 @@ static int snd_pcm_status_user(struct snd_pcm_substream *substream, if (ext && get_user(status.audio_tstamp_data, (u32 __user *)(&_status->audio_tstamp_data))) return -EFAULT; - res = snd_pcm_status(substream, &status); + res = snd_pcm_status64(substream, &status); if (res < 0) return res; if (copy_to_user(_status, &status, sizeof(status))) @@ -982,6 +991,55 @@ static int snd_pcm_status_user(struct snd_pcm_substream *substream, return 0; } +static int snd_pcm_status_user32(struct snd_pcm_substream *substream, + struct snd_pcm_status32 __user * _status, + bool ext) +{ + struct snd_pcm_status64 status64; + struct snd_pcm_status32 status32; + int res; + + memset(&status64, 0, sizeof(status64)); + memset(&status32, 0, sizeof(status32)); + /* + * with extension, parameters are read/write, + * get audio_tstamp_data from user, + * ignore rest of status structure + */ + if (ext && get_user(status64.audio_tstamp_data, + (u32 __user *)(&_status->audio_tstamp_data))) + return -EFAULT; + res = snd_pcm_status64(substream, &status64); + if (res < 0) + return res; + + status32 = (struct snd_pcm_status32) { + .state = status64.state, + .trigger_tstamp_sec = status64.trigger_tstamp_sec, + .trigger_tstamp_nsec = status64.trigger_tstamp_nsec, + .tstamp_sec = status64.tstamp_sec, + .tstamp_nsec = status64.tstamp_nsec, + .appl_ptr = status64.appl_ptr, + .hw_ptr = status64.hw_ptr, + .delay = status64.delay, + .avail = status64.avail, + .avail_max = status64.avail_max, + .overrange = status64.overrange, + .suspended_state = status64.suspended_state, + .audio_tstamp_data = status64.audio_tstamp_data, + .audio_tstamp_sec = status64.audio_tstamp_sec, + .audio_tstamp_nsec = status64.audio_tstamp_nsec, + .driver_tstamp_sec = status64.audio_tstamp_sec, + .driver_tstamp_nsec = status64.audio_tstamp_nsec, + .audio_tstamp_accuracy = status64.audio_tstamp_accuracy, + }; + + if (copy_to_user(_status, &status32, sizeof(status32))) + return -EFAULT; + + return 0; +} + static int snd_pcm_channel_info(struct snd_pcm_substream *substream, struct snd_pcm_channel_info * info) { @@ -2959,10 +3017,14 @@ static int snd_pcm_common_ioctl(struct file *file, return snd_pcm_hw_free(substream); case SNDRV_PCM_IOCTL_SW_PARAMS: return snd_pcm_sw_params_user(substream, arg); - case SNDRV_PCM_IOCTL_STATUS: - return snd_pcm_status_user(substream, arg, false); - case SNDRV_PCM_IOCTL_STATUS_EXT: - return snd_pcm_status_user(substream, arg, true); + case SNDRV_PCM_IOCTL_STATUS32: + return snd_pcm_status_user32(substream, arg, false); + case SNDRV_PCM_IOCTL_STATUS_EXT32: + return snd_pcm_status_user32(substream, arg, true); + case SNDRV_PCM_IOCTL_STATUS64: + return snd_pcm_status_user64(substream, arg, false); + case SNDRV_PCM_IOCTL_STATUS_EXT64: + return snd_pcm_status_user64(substream, arg, true); case SNDRV_PCM_IOCTL_CHANNEL_INFO: return snd_pcm_channel_info_user(substream, arg); case SNDRV_PCM_IOCTL_PREPARE: -- cgit v1.2.3