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Sun, 13 Aug 2023 07:12:31 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: imp@bsdimp.com, Stacey Son , Karim Taha , Richard Henderson Subject: [PATCH v2 19/32] Implement stat related syscalls Date: Sun, 13 Aug 2023 05:10:00 +0200 Message-Id: <20230813031013.1743-20-kariem.taha2.7@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230813031013.1743-1-kariem.taha2.7@gmail.com> References: <20230813031013.1743-1-kariem.taha2.7@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wm1-x336.google.com X-Spam_score_int: -2 X-Spam_score: -0.3 X-Spam_bar: / X-Spam_report: (-0.3 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_06_12=1.543, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Stacey Son Implement the following syscalls: statfs(2) fstatfs(2) getfsstat(2) Signed-off-by: Stacey Son Signed-off-by: Karim Taha Reviewed-by: Richard Henderson --- bsd-user/freebsd/os-stat.h | 69 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h index 935663c071..9492c93c55 100644 --- a/bsd-user/freebsd/os-stat.h +++ b/bsd-user/freebsd/os-stat.h @@ -210,4 +210,73 @@ 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_freebsd_statfs(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct statfs host_stfs; + + LOCK_PATH(p, arg1); + ret = get_errno(statfs(path(p), &host_stfs)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd_statfs(arg2, &host_stfs); +} + +/* fstatfs(2) */ +static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr) +{ + abi_long ret; + struct statfs host_stfs; + + ret = get_errno(fstatfs(fd, &host_stfs)); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd_statfs(target_addr, &host_stfs); +} + +/* getfsstat(2) */ +static inline abi_long do_freebsd_getfsstat(abi_ulong target_addr, + abi_long bufsize, abi_long flags) +{ + abi_long ret; + struct statfs *host_stfs; + int count; + long host_bufsize; + + count = bufsize / sizeof(struct target_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 statfs) * count; + host_stfs = alloca(host_bufsize); + if (!host_stfs) { + return -TARGET_EINVAL; + } + + ret = count = get_errno(getfsstat(host_stfs, host_bufsize, flags)); + if (is_error(ret)) { + return ret; + } + + while (count--) { + if (h2t_freebsd_statfs((target_addr + + (count * sizeof(struct target_statfs))), + &host_stfs[count])) { + return -TARGET_EFAULT; + } + } + return ret; +} + #endif /* BSD_USER_FREEBSD_OS_STAT_H */