From 196da9d3d3f1ab142473a6b2f714720ba1b29a33 Mon Sep 17 00:00:00 2001 From: Michal Meloun Date: Sun, 13 Aug 2023 10:41:45 +0200 Subject: [PATCH] bsd-user: Implement freebsd11 statfs related syscalls Implement the freebsd11 variant of the following syscalls: statfs(2) fstatfs(2) getfsstat(2) Co-authored-by: Stacey Son Signed-off-by: Stacey Son Signed-off-by: Michal Meloun Signed-off-by: Karim Taha Reviewed-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/freebsd/os-stat.h | 75 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h index 2e0c7245df..04a61fabd1 100644 --- a/bsd-user/freebsd/os-stat.h +++ b/bsd-user/freebsd/os-stat.h @@ -32,9 +32,15 @@ __sym_compat(fstatat, freebsd11_fstatat, FBSD_1.1); int freebsd11_fhstat(const fhandle_t *fhandle, struct freebsd11_stat *stat); __sym_compat(fhstat, freebsd11_fhstat, FBSD_1.0); +int freebsd11_getfsstat(struct freebsd11_statfs *buf, long bufsize, int mode); +__sym_compat(getfsstat, freebsd11_getfsstat, FBSD_1.0); int freebsd11_fhstatfs(const fhandle_t *fhandle, struct freebsd11_statfs * buf); __sym_compat(fhstatfs, freebsd11_fhstatfs, FBSD_1.0); int freebsd11_statfs(const char *path, struct freebsd11_statfs *buf); +__sym_compat(statfs, freebsd11_statfs, FBSD_1.0); +int freebsd11_fstatfs(int fd, struct freebsd11_statfs *buf); +__sym_compat(fstatfs, freebsd11_fstatfs, FBSD_1.0); + /* stat(2) */ static inline abi_long do_freebsd11_stat(abi_long arg1, abi_long arg2) @@ -293,6 +299,23 @@ static inline abi_long do_freebsd_fhstatfs(abi_ulong target_fhp_addr, return h2t_freebsd_statfs(target_stfs_addr, &host_stfs); } +/* statfs(2) */ +static inline abi_long do_freebsd11_statfs(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct freebsd11_statfs host_stfs; + + LOCK_PATH(p, arg1); + ret = get_errno(freebsd11_statfs(path(p), &host_stfs)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd11_statfs(arg2, &host_stfs); +} + /* statfs(2) */ static inline abi_long do_freebsd_statfs(abi_long arg1, abi_long arg2) { @@ -310,6 +333,20 @@ static inline abi_long do_freebsd_statfs(abi_long arg1, abi_long arg2) return h2t_freebsd_statfs(arg2, &host_stfs); } +/* fstatfs(2) */ +static inline abi_long do_freebsd11_fstatfs(abi_long fd, abi_ulong target_addr) +{ + abi_long ret; + struct freebsd11_statfs host_stfs; + + ret = get_errno(freebsd11_fstatfs(fd, &host_stfs)); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd11_statfs(target_addr, &host_stfs); +} + /* fstatfs(2) */ static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr) { @@ -324,6 +361,44 @@ static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr) return h2t_freebsd_statfs(target_addr, &host_stfs); } +/* getfsstat(2) */ +static inline abi_long do_freebsd11_getfsstat(abi_ulong target_addr, + abi_long bufsize, abi_long flags) +{ + abi_long ret; + struct freebsd11_statfs *host_stfs; + int count; + long host_bufsize; + + count = bufsize / sizeof(struct target_freebsd11_statfs); + + /* if user buffer is NULL then return number of mounted FS's */ + if (target_addr == 0 || count == 0) { + return get_errno(freebsd11_getfsstat(NULL, 0, flags)); + } + + /* XXX check count to be reasonable */ + host_bufsize = sizeof(struct freebsd11_statfs) * count; + host_stfs = alloca(host_bufsize); + if (!host_stfs) { + return -TARGET_EINVAL; + } + + ret = count = get_errno(freebsd11_getfsstat(host_stfs, host_bufsize, flags)); + if (is_error(ret)) { + return ret; + } + + while (count--) { + if (h2t_freebsd11_statfs((target_addr + + (count * sizeof(struct target_freebsd11_statfs))), + &host_stfs[count])) { + return -TARGET_EFAULT; + } + } + return ret; +} + /* getfsstat(2) */ static inline abi_long do_freebsd_getfsstat(abi_ulong target_addr, abi_long bufsize, abi_long flags) -- 2.39.5