diff options
Diffstat (limited to 'libarchive/archive_read_disk_entry_from_file.c')
| -rw-r--r-- | libarchive/archive_read_disk_entry_from_file.c | 1066 |
1 files changed, 904 insertions, 162 deletions
diff --git a/libarchive/archive_read_disk_entry_from_file.c b/libarchive/archive_read_disk_entry_from_file.c index 74fe353..591a212 100644 --- a/libarchive/archive_read_disk_entry_from_file.c +++ b/libarchive/archive_read_disk_entry_from_file.c @@ -1,6 +1,7 @@ /*- * Copyright (c) 2003-2009 Tim Kientzle * Copyright (c) 2010-2012 Michihiro NAKAJIMA + * Copyright (c) 2016 Martin Matuska * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -37,6 +38,11 @@ __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_disk_entry_from_file.c 2010 #ifdef HAVE_SYS_ACL_H #include <sys/acl.h> #endif +#ifdef HAVE_DARWIN_ACL +#include <membership.h> +#include <grp.h> +#include <pwd.h> +#endif #ifdef HAVE_SYS_EXTATTR_H #include <sys/extattr.h> #endif @@ -117,6 +123,15 @@ __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_disk_entry_from_file.c 2010 #define ACL_GET_PERM acl_get_perm_np #endif +/* NFSv4 platform ACL type */ +#if HAVE_SUN_ACL +#define ARCHIVE_PLATFORM_ACL_TYPE_NFS4 ACE_T +#elif HAVE_DARWIN_ACL +#define ARCHIVE_PLATFORM_ACL_TYPE_NFS4 ACL_TYPE_EXTENDED +#elif HAVE_ACL_TYPE_NFS4 +#define ARCHIVE_PLATFORM_ACL_TYPE_NFS4 ACL_TYPE_NFS4 +#endif + static int setup_acls(struct archive_read_disk *, struct archive_entry *, int *fd); static int setup_mac_metadata(struct archive_read_disk *, @@ -125,6 +140,10 @@ static int setup_xattrs(struct archive_read_disk *, struct archive_entry *, int *fd); static int setup_sparse(struct archive_read_disk *, struct archive_entry *, int *fd); +#if defined(HAVE_LINUX_FIEMAP_H) +static int setup_sparse_fiemap(struct archive_read_disk *, + struct archive_entry *, int *fd); +#endif int archive_read_disk_entry_from_file(struct archive *_a, @@ -302,20 +321,17 @@ setup_mac_metadata(struct archive_read_disk *a, name = archive_entry_sourcepath(entry); if (name == NULL) name = archive_entry_pathname(entry); + else if (a->tree != NULL && a->tree_enter_working_dir(a->tree) != 0) { + archive_set_error(&a->archive, errno, + "Can't change dir to read extended attributes"); + return (ARCHIVE_FAILED); + } if (name == NULL) { archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, "Can't open file to read extended attributes: No name"); return (ARCHIVE_WARN); } - if (a->tree != NULL) { - if (a->tree_enter_working_dir(a->tree) != 0) { - archive_set_error(&a->archive, errno, - "Couldn't change dir"); - return (ARCHIVE_FAILED); - } - } - /* Short-circuit if there's nothing to do. */ have_attrs = copyfile(name, NULL, 0, copyfile_flags | COPYFILE_CHECK); if (have_attrs == -1) { @@ -400,34 +416,87 @@ setup_mac_metadata(struct archive_read_disk *a, } #endif +#if HAVE_DARWIN_ACL +static int translate_guid(struct archive *, acl_entry_t, + int *, int *, const char **); + +static void add_trivial_nfs4_acl(struct archive_entry *); +#endif + +#if HAVE_SUN_ACL +static int +sun_acl_is_trivial(acl_t *, mode_t, int *trivialp); +#endif -#ifdef HAVE_POSIX_ACL +#if HAVE_POSIX_ACL || HAVE_NFS4_ACL static int translate_acl(struct archive_read_disk *a, - struct archive_entry *entry, acl_t acl, int archive_entry_acl_type); + struct archive_entry *entry, +#if HAVE_SUN_ACL + acl_t *acl, +#else + acl_t acl, +#endif + int archive_entry_acl_type); static int setup_acls(struct archive_read_disk *a, struct archive_entry *entry, int *fd) { const char *accpath; - acl_t acl; -#if HAVE_ACL_IS_TRIVIAL_NP - int r; +#if HAVE_SUN_ACL + acl_t *acl; +#else + acl_t acl; #endif + int r; - accpath = archive_entry_sourcepath(entry); - if (accpath == NULL) - accpath = archive_entry_pathname(entry); + accpath = NULL; + +#if HAVE_SUN_ACL || HAVE_DARWIN_ACL || HAVE_ACL_GET_FD_NP + if (*fd < 0) +#else + /* For default ACLs on Linux we need reachable accpath */ + if (*fd < 0 || S_ISDIR(archive_entry_mode(entry))) +#endif + { + accpath = archive_entry_sourcepath(entry); + if (accpath == NULL || (a->tree != NULL && + a->tree_enter_working_dir(a->tree) != 0)) + accpath = archive_entry_pathname(entry); + if (accpath == NULL) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Couldn't determine file path to read ACLs"); + return (ARCHIVE_WARN); + } + if (a->tree != NULL && +#if !HAVE_SUN_ACL && !HAVE_DARWIN_ACL && !HAVE_ACL_GET_FD_NP + *fd < 0 && +#endif + (a->follow_symlinks || + archive_entry_filetype(entry) != AE_IFLNK)) { + *fd = a->open_on_current_dir(a->tree, + accpath, O_RDONLY | O_NONBLOCK); + } + } archive_entry_acl_clear(entry); -#ifdef ACL_TYPE_NFS4 - /* Try NFS4 ACL first. */ + acl = NULL; + +#if HAVE_NFS4_ACL + /* Try NFSv4 ACL first. */ if (*fd >= 0) +#if HAVE_SUN_ACL + /* Solaris reads both POSIX.1e and NFSv4 ACL here */ + facl_get(*fd, 0, &acl); +#elif HAVE_ACL_GET_FD_NP + acl = acl_get_fd_np(*fd, ARCHIVE_PLATFORM_ACL_TYPE_NFS4); +#else acl = acl_get_fd(*fd); +#endif #if HAVE_ACL_GET_LINK_NP else if (!a->follow_symlinks) - acl = acl_get_link_np(accpath, ACL_TYPE_NFS4); + acl = acl_get_link_np(accpath, ARCHIVE_PLATFORM_ACL_TYPE_NFS4); #else else if ((!a->follow_symlinks) && (archive_entry_filetype(entry) == AE_IFLNK)) @@ -436,21 +505,62 @@ setup_acls(struct archive_read_disk *a, acl = NULL; #endif else - acl = acl_get_file(accpath, ACL_TYPE_NFS4); -#if HAVE_ACL_IS_TRIVIAL_NP +#if HAVE_SUN_ACL + /* Solaris reads both POSIX.1e and NFSv4 ACLs here */ + acl_get(accpath, 0, &acl); +#else + acl = acl_get_file(accpath, ARCHIVE_PLATFORM_ACL_TYPE_NFS4); +#endif + + +#if HAVE_ACL_IS_TRIVIAL_NP || HAVE_SUN_ACL /* Ignore "trivial" ACLs that just mirror the file mode. */ - acl_is_trivial_np(acl, &r); - if (r) { - acl_free(acl); - acl = NULL; - } + if (acl != NULL) { +#if HAVE_SUN_ACL + if (sun_acl_is_trivial(acl, archive_entry_mode(entry), + &r) == 0 && r == 1) +#elif HAVE_ACL_IS_TRIVIAL_NP + if (acl_is_trivial_np(acl, &r) == 0 && r == 1) #endif + { + acl_free(acl); + acl = NULL; + /* + * Simultaneous NFSv4 and POSIX.1e ACLs for the same + * entry are not allowed, so we should return here + */ + return (ARCHIVE_OK); + } + } +#endif /* HAVE_ACL_IS_TRIVIAL_NP || HAVE_SUN_ACL */ if (acl != NULL) { - translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_NFS4); + r = translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_NFS4); acl_free(acl); - return (ARCHIVE_OK); - } + if (r != ARCHIVE_OK) { + archive_set_error(&a->archive, errno, + "Couldn't translate " +#if !HAVE_SUN_ACL + "NFSv4 " +#endif + "ACLs"); + } +#if HAVE_DARWIN_ACL + /* + * Because Mac OS doesn't support owner@, group@ and everyone@ + * ACLs we need to add NFSv4 ACLs mirroring the file mode to + * the archive entry. Otherwise extraction on non-Mac platforms + * would lead to an invalid file mode. + */ + if ((archive_entry_acl_types(entry) & + ARCHIVE_ENTRY_ACL_TYPE_NFS4) != 0) + add_trivial_nfs4_acl(entry); #endif + return (r); + } +#endif /* HAVE_NFS4_ACL */ + +#if HAVE_POSIX_ACL + /* This code path is skipped on MacOS and Solaris */ /* Retrieve access ACL from file. */ if (*fd >= 0) @@ -467,88 +577,609 @@ setup_acls(struct archive_read_disk *a, #endif else acl = acl_get_file(accpath, ACL_TYPE_ACCESS); + +#if HAVE_ACL_IS_TRIVIAL_NP + /* Ignore "trivial" ACLs that just mirror the file mode. */ + if (acl != NULL && acl_is_trivial_np(acl, &r) == 0) { + if (r) { + acl_free(acl); + acl = NULL; + } + } +#endif + if (acl != NULL) { - translate_acl(a, entry, acl, - ARCHIVE_ENTRY_ACL_TYPE_ACCESS); + r = translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_ACCESS); acl_free(acl); + acl = NULL; + if (r != ARCHIVE_OK) { + archive_set_error(&a->archive, errno, + "Couldn't translate access ACLs"); + return (r); + } } /* Only directories can have default ACLs. */ if (S_ISDIR(archive_entry_mode(entry))) { +#if HAVE_ACL_GET_FD_NP + if (*fd >= 0) + acl = acl_get_fd_np(*fd, ACL_TYPE_DEFAULT); + else +#endif acl = acl_get_file(accpath, ACL_TYPE_DEFAULT); if (acl != NULL) { - translate_acl(a, entry, acl, + r = translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_DEFAULT); acl_free(acl); + if (r != ARCHIVE_OK) { + archive_set_error(&a->archive, errno, + "Couldn't translate default ACLs"); + return (r); + } } } +#endif /* HAVE_POSIX_ACL */ return (ARCHIVE_OK); } /* - * Translate system ACL into libarchive internal structure. + * Translate system ACL permissions into libarchive internal structure */ - -static struct { - int archive_perm; - int platform_perm; +static const struct { + const int archive_perm; + const int platform_perm; } acl_perm_map[] = { - {ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE}, - {ARCHIVE_ENTRY_ACL_WRITE, ACL_WRITE}, - {ARCHIVE_ENTRY_ACL_READ, ACL_READ}, -#ifdef ACL_TYPE_NFS4 - {ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA}, - {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY}, - {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA}, - {ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE}, - {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA}, - {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY}, - {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_NAMED_ATTRS}, - {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_NAMED_ATTRS}, - {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD}, - {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES}, - {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES}, - {ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE}, - {ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_ACL}, - {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_ACL}, - {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_WRITE_OWNER}, - {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE} +#if HAVE_SUN_ACL /* Solaris NFSv4 ACL permissions */ + {ARCHIVE_ENTRY_ACL_EXECUTE, ACE_EXECUTE}, + {ARCHIVE_ENTRY_ACL_READ_DATA, ACE_READ_DATA}, + {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACE_LIST_DIRECTORY}, + {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACE_WRITE_DATA}, + {ARCHIVE_ENTRY_ACL_ADD_FILE, ACE_ADD_FILE}, + {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACE_APPEND_DATA}, + {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACE_ADD_SUBDIRECTORY}, + {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACE_READ_NAMED_ATTRS}, + {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACE_WRITE_NAMED_ATTRS}, + {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACE_DELETE_CHILD}, + {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACE_READ_ATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACE_WRITE_ATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_DELETE, ACE_DELETE}, + {ARCHIVE_ENTRY_ACL_READ_ACL, ACE_READ_ACL}, + {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACE_WRITE_ACL}, + {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACE_WRITE_OWNER}, + {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACE_SYNCHRONIZE} +#elif HAVE_DARWIN_ACL /* MacOS ACL permissions */ + {ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA}, + {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY}, + {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA}, + {ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE}, + {ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE}, + {ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE}, + {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA}, + {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY}, + {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD}, + {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_EXTATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_EXTATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_SECURITY}, + {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_SECURITY}, + {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_CHANGE_OWNER}, + {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE} +#else /* POSIX.1e ACL permissions */ + {ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE}, + {ARCHIVE_ENTRY_ACL_WRITE, ACL_WRITE}, + {ARCHIVE_ENTRY_ACL_READ, ACL_READ}, +#if HAVE_ACL_TYPE_NFS4 /* FreeBSD NFSv4 ACL permissions */ + {ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA}, + {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY}, + {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA}, + {ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE}, + {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA}, + {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY}, + {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_NAMED_ATTRS}, + {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_NAMED_ATTRS}, + {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD}, + {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES}, + {ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE}, + {ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_ACL}, + {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_ACL}, + {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_WRITE_OWNER}, + {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE} #endif +#endif /* !HAVE_SUN_ACL && !HAVE_DARWIN_ACL */ }; -#ifdef ACL_TYPE_NFS4 -static struct { - int archive_inherit; - int platform_inherit; +#if HAVE_NFS4_ACL +/* + * Translate system NFSv4 inheritance flags into libarchive internal structure + */ +static const struct { + const int archive_inherit; + const int platform_inherit; } acl_inherit_map[] = { - {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT}, +#if HAVE_SUN_ACL /* Solaris ACL inheritance flags */ + {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACE_FILE_INHERIT_ACE}, + {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACE_DIRECTORY_INHERIT_ACE}, + {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACE_NO_PROPAGATE_INHERIT_ACE}, + {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACE_INHERIT_ONLY_ACE}, + {ARCHIVE_ENTRY_ACL_ENTRY_SUCCESSFUL_ACCESS, ACE_SUCCESSFUL_ACCESS_ACE_FLAG}, + {ARCHIVE_ENTRY_ACL_ENTRY_FAILED_ACCESS, ACE_FAILED_ACCESS_ACE_FLAG}, + {ARCHIVE_ENTRY_ACL_ENTRY_INHERITED, ACE_INHERITED_ACE} +#elif HAVE_DARWIN_ACL /* MacOS NFSv4 inheritance flags */ + {ARCHIVE_ENTRY_ACL_ENTRY_INHERITED, ACL_ENTRY_INHERITED}, + {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT}, + {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACL_ENTRY_DIRECTORY_INHERIT}, + {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACL_ENTRY_LIMIT_INHERIT}, + {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_ONLY_INHERIT} +#else /* FreeBSD NFSv4 ACL inheritance flags */ + {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT}, {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACL_ENTRY_DIRECTORY_INHERIT}, {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACL_ENTRY_NO_PROPAGATE_INHERIT}, - {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_INHERIT_ONLY} + {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_INHERIT_ONLY}, + {ARCHIVE_ENTRY_ACL_ENTRY_SUCCESSFUL_ACCESS, ACL_ENTRY_SUCCESSFUL_ACCESS}, + {ARCHIVE_ENTRY_ACL_ENTRY_FAILED_ACCESS, ACL_ENTRY_FAILED_ACCESS}, + {ARCHIVE_ENTRY_ACL_ENTRY_INHERITED, ACL_ENTRY_INHERITED} +#endif /* !HAVE_SUN_ACL && !HAVE_DARWIN_ACL */ }; -#endif +#endif /* HAVE_NFS4_ACL */ + +#if HAVE_DARWIN_ACL +static int translate_guid(struct archive *a, acl_entry_t acl_entry, + int *ae_id, int *ae_tag, const char **ae_name) +{ + void *q; + uid_t ugid; + int r, idtype; + struct passwd *pwd; + struct group *grp; + + q = acl_get_qualifier(acl_entry); + if (q == NULL) + return (1); + r = mbr_uuid_to_id((const unsigned char *)q, &ugid, &idtype); + if (r != 0) { + acl_free(q); + return (1); + } + if (idtype == ID_TYPE_UID) { + *ae_tag = ARCHIVE_ENTRY_ACL_USER; + pwd = getpwuuid(q); + if (pwd == NULL) { + *ae_id = ugid; + *ae_name = NULL; + } else { + *ae_id = pwd->pw_uid; + *ae_name = archive_read_disk_uname(a, *ae_id); + } + } else if (idtype == ID_TYPE_GID) { + *ae_tag = ARCHIVE_ENTRY_ACL_GROUP; + grp = getgruuid(q); + if (grp == NULL) { + *ae_id = ugid; + *ae_name = NULL; + } else { + *ae_id = grp->gr_gid; + *ae_name = archive_read_disk_gname(a, *ae_id); + } + } else + r = 1; + + acl_free(q); + return (r); +} + +/* + * Add trivial NFSv4 ACL entries from mode + */ +static void +add_trivial_nfs4_acl(struct archive_entry *entry) +{ + mode_t mode; + int i; + const int rperm = ARCHIVE_ENTRY_ACL_READ_DATA; + const int wperm = ARCHIVE_ENTRY_ACL_WRITE_DATA | + ARCHIVE_ENTRY_ACL_APPEND_DATA; + const int eperm = ARCHIVE_ENTRY_ACL_EXECUTE; + const int pubset = ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES | + ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS | + ARCHIVE_ENTRY_ACL_READ_ACL | + ARCHIVE_ENTRY_ACL_SYNCHRONIZE; + const int ownset = pubset | ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES | + ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS | + ARCHIVE_ENTRY_ACL_WRITE_ACL | + ARCHIVE_ENTRY_ACL_WRITE_OWNER; + + struct { + const int type; + const int tag; + int permset; + } tacl_entry[] = { + {ARCHIVE_ENTRY_ACL_TYPE_ALLOW, ARCHIVE_ENTRY_ACL_USER_OBJ, 0}, + {ARCHIVE_ENTRY_ACL_TYPE_DENY, ARCHIVE_ENTRY_ACL_USER_OBJ, 0}, + {ARCHIVE_ENTRY_ACL_TYPE_DENY, ARCHIVE_ENTRY_ACL_GROUP_OBJ, 0}, + {ARCHIVE_ENTRY_ACL_TYPE_ALLOW, ARCHIVE_ENTRY_ACL_USER_OBJ, ownset}, + {ARCHIVE_ENTRY_ACL_TYPE_ALLOW, ARCHIVE_ENTRY_ACL_GROUP_OBJ, pubset}, + {ARCHIVE_ENTRY_ACL_TYPE_ALLOW, ARCHIVE_ENTRY_ACL_EVERYONE, pubset} + }; + + mode = archive_entry_mode(entry); + + /* Permissions for everyone@ */ + if (mode & 0004) + tacl_entry[5].permset |= rperm; + if (mode & 0002) + tacl_entry[5].permset |= wperm; + if (mode & 0001) + tacl_entry[5].permset |= eperm; + + /* Permissions for group@ */ + if (mode & 0040) + tacl_entry[4].permset |= rperm; + else if (mode & 0004) + tacl_entry[2].permset |= rperm; + if (mode & 0020) + tacl_entry[4].permset |= wperm; + else if (mode & 0002) + tacl_entry[2].permset |= wperm; + if (mode & 0010) + tacl_entry[4].permset |= eperm; + else if (mode & 0001) + tacl_entry[2].permset |= eperm; + + /* Permissions for owner@ */ + if (mode & 0400) { + tacl_entry[3].permset |= rperm; + if (!(mode & 0040) && (mode & 0004)) + tacl_entry[0].permset |= rperm; + } else if ((mode & 0040) || (mode & 0004)) + tacl_entry[1].permset |= rperm; + if (mode & 0200) { + tacl_entry[3].permset |= wperm; + if (!(mode & 0020) && (mode & 0002)) + tacl_entry[0].permset |= wperm; + } else if ((mode & 0020) || (mode & 0002)) + tacl_entry[1].permset |= wperm; + if (mode & 0100) { + tacl_entry[3].permset |= eperm; + if (!(mode & 0010) && (mode & 0001)) + tacl_entry[0].permset |= eperm; + } else if ((mode & 0010) || (mode & 0001)) + tacl_entry[1].permset |= eperm; + + for (i = 0; i < 6; i++) { + if (tacl_entry[i].permset != 0) { + archive_entry_acl_add_entry(entry, + tacl_entry[i].type, tacl_entry[i].permset, + tacl_entry[i].tag, -1, NULL); + } + } + + return; +} +#elif HAVE_SUN_ACL +/* + * Check if acl is trivial + * This is a FreeBSD acl_is_trivial_np() implementation for Solaris + */ +static int +sun_acl_is_trivial(acl_t *acl, mode_t mode, int *trivialp) +{ + int i, p; + const uint32_t rperm = ACE_READ_DATA; + const uint32_t wperm = ACE_WRITE_DATA | ACE_APPEND_DATA; + const uint32_t eperm = ACE_EXECUTE; + const uint32_t pubset = ACE_READ_ATTRIBUTES | ACE_READ_NAMED_ATTRS | + ACE_READ_ACL | ACE_SYNCHRONIZE; + const uint32_t ownset = pubset | ACE_WRITE_ATTRIBUTES | + ACE_WRITE_NAMED_ATTRS | ACE_WRITE_ACL | ACE_WRITE_OWNER; + + ace_t *ace; + ace_t tace[6]; + + if (acl == NULL || trivialp == NULL) + return (-1); + + *trivialp = 0; + + /* ACL_IS_TRIVIAL flag must be set for both POSIX.1e and NFSv4 ACLs */ + if ((acl->acl_flags & ACL_IS_TRIVIAL) == 0) + return (0); + + /* + * POSIX.1e ACLs marked with ACL_IS_TRIVIAL are compatible with + * FreeBSD acl_is_trivial_np(). On Solaris they have 4 entries, + * including mask. + */ + if (acl->acl_type == ACLENT_T) { + if (acl->acl_cnt == 4) + *trivialp = 1; + return (0); + } + + if (acl->acl_type != ACE_T || acl->acl_entry_size != sizeof(ace_t)) + return (-1); + + /* + * Continue with checking NFSv4 ACLs + * + * Create list of trivial ace's to be compared + */ + + /* owner@ allow pre */ + tace[0].a_flags = ACE_OWNER; + tace[0].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE; + tace[0].a_access_mask = 0; + + /* owner@ deny */ + tace[1].a_flags = ACE_OWNER; + tace[1].a_type = ACE_ACCESS_DENIED_ACE_TYPE; + tace[1].a_access_mask = 0; + + /* group@ deny */ + tace[2].a_flags = ACE_GROUP | ACE_IDENTIFIER_GROUP; + tace[2].a_type = ACE_ACCESS_DENIED_ACE_TYPE; + tace[2].a_access_mask = 0; + + /* owner@ allow */ + tace[3].a_flags = ACE_OWNER; + tace[3].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE; + tace[3].a_access_mask = ownset; + + /* group@ allow */ + tace[4].a_flags = ACE_GROUP | ACE_IDENTIFIER_GROUP; + tace[4].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE; + tace[4].a_access_mask = pubset; + + /* everyone@ allow */ + tace[5].a_flags = ACE_EVERYONE; + tace[5].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE; + tace[5].a_access_mask = pubset; + + /* Permissions for everyone@ */ + if (mode & 0004) + tace[5].a_access_mask |= rperm; + if (mode & 0002) + tace[5].a_access_mask |= wperm; + if (mode & 0001) + tace[5].a_access_mask |= eperm; + + /* Permissions for group@ */ + if (mode & 0040) + tace[4].a_access_mask |= rperm; + else if (mode & 0004) + tace[2].a_access_mask |= rperm; + if (mode & 0020) + tace[4].a_access_mask |= wperm; + else if (mode & 0002) + tace[2].a_access_mask |= wperm; + if (mode & 0010) + tace[4].a_access_mask |= eperm; + else if (mode & 0001) + tace[2].a_access_mask |= eperm; + + /* Permissions for owner@ */ + if (mode & 0400) { + tace[3].a_access_mask |= rperm; + if (!(mode & 0040) && (mode & 0004)) + tace[0].a_access_mask |= rperm; + } else if ((mode & 0040) || (mode & 0004)) + tace[1].a_access_mask |= rperm; + if (mode & 0200) { + tace[3].a_access_mask |= wperm; + if (!(mode & 0020) && (mode & 0002)) + tace[0].a_access_mask |= wperm; + } else if ((mode & 0020) || (mode & 0002)) + tace[1].a_access_mask |= wperm; + if (mode & 0100) { + tace[3].a_access_mask |= eperm; + if (!(mode & 0010) && (mode & 0001)) + tace[0].a_access_mask |= eperm; + } else if ((mode & 0010) || (mode & 0001)) + tace[1].a_access_mask |= eperm; + + /* Check if the acl count matches */ + p = 3; + for (i = 0; i < 3; i++) { + if (tace[i].a_access_mask != 0) + p++; + } + if (acl->acl_cnt != p) + return (0); + + p = 0; + for (i = 0; i < 6; i++) { + if (tace[i].a_access_mask != 0) { + ace = &((ace_t *)acl->acl_aclp)[p]; + /* + * Illumos added ACE_DELETE_CHILD to write perms for + * directories. We have to check against that, too. + */ + if (ace->a_flags != tace[i].a_flags || + ace->a_type != tace[i].a_type || + (ace->a_access_mask != tace[i].a_access_mask && + ((acl->acl_flags & ACL_IS_DIR) == 0 || + (tace[i].a_access_mask & wperm) == 0 || + ace->a_access_mask != + (tace[i].a_access_mask | ACE_DELETE_CHILD)))) + return (0); + p++; + } + } + + *trivialp = 1; + return (0); +} +#endif /* HAVE_SUN_ACL */ + +#if HAVE_SUN_ACL +/* + * Translate Solaris POSIX.1e and NFSv4 ACLs into libarchive internal ACL + */ +static int +translate_acl(struct archive_read_disk *a, + struct archive_entry *entry, acl_t *acl, int default_entry_acl_type) +{ + int e, i; + int ae_id, ae_tag, ae_perm; + int entry_acl_type; + const char *ae_name; + aclent_t *aclent; + ace_t *ace; + + (void)default_entry_acl_type; + + if (acl->acl_cnt <= 0) + return (ARCHIVE_OK); + + for (e = 0; e < acl->acl_cnt; e++) { + ae_name = NULL; + ae_tag = 0; + ae_perm = 0; + + if (acl->acl_type == ACE_T) { + ace = &((ace_t *)acl->acl_aclp)[e]; + ae_id = ace->a_who; + + switch(ace->a_type) { + case ACE_ACCESS_ALLOWED_ACE_TYPE: + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALLOW; + break; + case ACE_ACCESS_DENIED_ACE_TYPE: + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DENY; + break; + case ACE_SYSTEM_AUDIT_ACE_TYPE: + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS; + break; + case ACE_SYSTEM_ALARM_ACE_TYPE: + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALARM; + break; + default: + /* Unknown entry type, skip */ + continue; + } + + if ((ace->a_flags & ACE_OWNER) != 0) + ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ; + else if ((ace->a_flags & ACE_GROUP) != 0) + ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ; + else if ((ace->a_flags & ACE_EVERYONE) != 0) + ae_tag = ARCHIVE_ENTRY_ACL_EVERYONE; + else if ((ace->a_flags & ACE_IDENTIFIER_GROUP) != 0) { + ae_tag = ARCHIVE_ENTRY_ACL_GROUP; + ae_name = archive_read_disk_gname(&a->archive, + ae_id); + } else { + ae_tag = ARCHIVE_ENTRY_ACL_USER; + ae_name = archive_read_disk_uname(&a->archive, + ae_id); + } + + for (i = 0; i < (int)(sizeof(acl_inherit_map) / + sizeof(acl_inherit_map[0])); ++i) { + if ((ace->a_flags & + acl_inherit_map[i].platform_inherit) != 0) + ae_perm |= + acl_inherit_map[i].archive_inherit; + } + + for (i = 0; i < (int)(sizeof(acl_perm_map) / + sizeof(acl_perm_map[0])); ++i) { + if ((ace->a_access_mask & + acl_perm_map[i].platform_perm) != 0) + ae_perm |= + acl_perm_map[i].archive_perm; + } + } else { + aclent = &((aclent_t *)acl->acl_aclp)[e]; + if ((aclent->a_type & ACL_DEFAULT) != 0) + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DEFAULT; + else + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS; + ae_id = aclent->a_id; + + switch(aclent->a_type) { + case DEF_USER: + case USER: + ae_name = archive_read_disk_uname(&a->archive, + ae_id); + ae_tag = ARCHIVE_ENTRY_ACL_USER; + break; + case DEF_GROUP: + case GROUP: + ae_name = archive_read_disk_gname(&a->archive, + ae_id); + ae_tag = ARCHIVE_ENTRY_ACL_GROUP; + break; + case DEF_CLASS_OBJ: + case CLASS_OBJ: + ae_tag = ARCHIVE_ENTRY_ACL_MASK; + break; + case DEF_USER_OBJ: + case USER_OBJ: + ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ; + break; + case DEF_GROUP_OBJ: + case GROUP_OBJ: + ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ; + break; + case DEF_OTHER_OBJ: + case OTHER_OBJ: + ae_tag = ARCHIVE_ENTRY_ACL_OTHER; + break; + default: + /* Unknown tag type, skip */ + continue; + } + + if ((aclent->a_perm & 1) != 0) + ae_perm |= ARCHIVE_ENTRY_ACL_EXECUTE; + if ((aclent->a_perm & 2) != 0) + ae_perm |= ARCHIVE_ENTRY_ACL_WRITE; + if ((aclent->a_perm & 4) != 0) + ae_perm |= ARCHIVE_ENTRY_ACL_READ; + } /* default_entry_acl_type != ARCHIVE_ENTRY_ACL_TYPE_NFS4 */ + + archive_entry_acl_add_entry(entry, entry_acl_type, + ae_perm, ae_tag, ae_id, ae_name); + } + return (ARCHIVE_OK); +} +#else /* !HAVE_SUN_ACL */ +/* + * Translate POSIX.1e (Linux), FreeBSD (both POSIX.1e and NFSv4) and + * MacOS (NFSv4 only) ACLs into libarchive internal structure + */ static int translate_acl(struct archive_read_disk *a, struct archive_entry *entry, acl_t acl, int default_entry_acl_type) { acl_tag_t acl_tag; -#ifdef ACL_TYPE_NFS4 +#if HAVE_ACL_TYPE_NFS4 acl_entry_type_t acl_type; + int brand; +#endif +#if HAVE_ACL_TYPE_NFS4 || HAVE_DARWIN_ACL acl_flagset_t acl_flagset; - int brand, r; #endif acl_entry_t acl_entry; acl_permset_t acl_permset; int i, entry_acl_type; - int s, ae_id, ae_tag, ae_perm; + int r, s, ae_id, ae_tag, ae_perm; +#if !HAVE_DARWIN_ACL + void *q; +#endif const char *ae_name; - -#ifdef ACL_TYPE_NFS4 +#if HAVE_ACL_TYPE_NFS4 // FreeBSD "brands" ACLs as POSIX.1e or NFSv4 // Make sure the "brand" on this ACL is consistent // with the default_entry_acl_type bits provided. - acl_get_brand_np(acl, &brand); + if (acl_get_brand_np(acl, &brand) != 0) { + archive_set_error(&a->archive, errno, + "Failed to read ACL brand"); + return (ARCHIVE_WARN); + } switch (brand) { case ACL_BRAND_POSIX: switch (default_entry_acl_type) { @@ -556,40 +1187,67 @@ translate_acl(struct archive_read_disk *a, case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT: break; default: - // XXX set warning message? - return ARCHIVE_FAILED; + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Invalid ACL entry type for POSIX.1e ACL"); + return (ARCHIVE_WARN); } break; case ACL_BRAND_NFS4: if (default_entry_acl_type & ~ARCHIVE_ENTRY_ACL_TYPE_NFS4) { - // XXX set warning message? - return ARCHIVE_FAILED; + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Invalid ACL entry type for NFSv4 ACL"); + return (ARCHIVE_WARN); } break; default: - // XXX set warning message? - return ARCHIVE_FAILED; - break; + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Unknown ACL brand"); + return (ARCHIVE_WARN); } #endif - s = acl_get_entry(acl, ACL_FIRST_ENTRY, &acl_entry); - while (s == 1) { + if (s == -1) { + archive_set_error(&a->archive, errno, + "Failed to get first ACL entry"); + return (ARCHIVE_WARN); + } + +#if HAVE_DARWIN_ACL + while (s == 0) +#else /* FreeBSD, Linux */ + while (s == 1) +#endif + { ae_id = -1; ae_name = NULL; ae_perm = 0; - acl_get_tag_type(acl_entry, &acl_tag); + if (acl_get_tag_type(acl_entry, &acl_tag) != 0) { + archive_set_error(&a->archive, errno, + "Failed to get ACL tag type"); + return (ARCHIVE_WARN); + } switch (acl_tag) { +#if !HAVE_DARWIN_ACL /* FreeBSD, Linux */ case ACL_USER: - ae_id = (int)*(uid_t *)acl_get_qualifier(acl_entry); - ae_name = archive_read_disk_uname(&a->archive, ae_id); + q = acl_get_qualifier(acl_entry); + if (q != NULL) { + ae_id = (int)*(uid_t *)q; + acl_free(q); + ae_name = archive_read_disk_uname(&a->archive, + ae_id); + } ae_tag = ARCHIVE_ENTRY_ACL_USER; break; case ACL_GROUP: - ae_id = (int)*(gid_t *)acl_get_qualifier(acl_entry); - ae_name = archive_read_disk_gname(&a->archive, ae_id); + q = acl_get_qualifier(acl_entry); + if (q != NULL) { + ae_id = (int)*(gid_t *)q; + acl_free(q); + ae_name = archive_read_disk_gname(&a->archive, + ae_id); + } ae_tag = ARCHIVE_ENTRY_ACL_GROUP; break; case ACL_MASK: @@ -604,24 +1262,52 @@ translate_acl(struct archive_read_disk *a, case ACL_OTHER: ae_tag = ARCHIVE_ENTRY_ACL_OTHER; break; -#ifdef ACL_TYPE_NFS4 +#if HAVE_ACL_TYPE_NFS4 case ACL_EVERYONE: ae_tag = ARCHIVE_ENTRY_ACL_EVERYONE; break; #endif +#else /* HAVE_DARWIN_ACL */ + case ACL_EXTENDED_ALLOW: + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALLOW; + r = translate_guid(&a->archive, acl_entry, &ae_id, + &ae_tag, &ae_name); + break; + case ACL_EXTENDED_DENY: + entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DENY; + r = translate_guid(&a->archive, acl_entry, &ae_id, + &ae_tag, &ae_name); + break; +#endif /* HAVE_DARWIN_ACL */ default: /* Skip types that libarchive can't support. */ s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry); continue; } - // XXX acl type maps to allow/deny/audit/YYYY bits - // XXX acl_get_entry_type_np on FreeBSD returns EINVAL for - // non-NFSv4 ACLs +#if HAVE_DARWIN_ACL + /* Skip if translate_guid() above failed */ + if (r != 0) { + s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry); + continue; + } +#endif + +#if !HAVE_DARWIN_ACL + // XXX acl_type maps to allow/deny/audit/YYYY bits entry_acl_type = default_entry_acl_type; -#ifdef ACL_TYPE_NFS4 - r = acl_get_entry_type_np(acl_entry, &acl_type); - if (r == 0) { +#endif +#if HAVE_ACL_TYPE_NFS4 || HAVE_DARWIN_ACL + if (default_entry_acl_type & ARCHIVE_ENTRY_ACL_TYPE_NFS4) { +#if HAVE_ACL_TYPE_NFS4 + /* + * acl_get_entry_type_np() fails with non-NFSv4 ACLs + */ + if (acl_get_entry_type_np(acl_entry, &acl_type) != 0) { + archive_set_error(&a->archive, errno, "Failed " + "to get ACL type from a NFSv4 ACL entry"); + return (ARCHIVE_WARN); + } switch (acl_type) { case ACL_ENTRY_TYPE_ALLOW: entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALLOW; @@ -635,29 +1321,54 @@ translate_acl(struct archive_read_disk *a, case ACL_ENTRY_TYPE_ALARM: entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALARM; break; + default: + archive_set_error(&a->archive, errno, + "Invalid NFSv4 ACL entry type"); + return (ARCHIVE_WARN); } - } - - /* - * Libarchive stores "flag" (NFSv4 inheritance bits) - * in the ae_perm bitmap. - */ - acl_get_flagset_np(acl_entry, &acl_flagset); - for (i = 0; i < (int)(sizeof(acl_inherit_map) / sizeof(acl_inherit_map[0])); ++i) { - if (acl_get_flag_np(acl_flagset, - acl_inherit_map[i].platform_inherit)) - ae_perm |= acl_inherit_map[i].archive_inherit; +#endif /* HAVE_ACL_TYPE_NFS4 */ - } -#endif + /* + * Libarchive stores "flag" (NFSv4 inheritance bits) + * in the ae_perm bitmap. + * + * acl_get_flagset_np() fails with non-NFSv4 ACLs + */ + if (acl_get_flagset_np(acl_entry, &acl_flagset) != 0) { + archive_set_error(&a->archive, errno, + "Failed to get flagset from a NFSv4 ACL entry"); + return (ARCHIVE_WARN); + } + for (i = 0; i < (int)(sizeof(acl_inherit_map) / sizeof(acl_inherit_map[0])); ++i) { + r = acl_get_flag_np(acl_flagset, + acl_inherit_map[i].platform_inherit); + if (r == -1) { + archive_set_error(&a->archive, errno, + "Failed to check flag in a NFSv4 " + "ACL flagset"); + return (ARCHIVE_WARN); + } else if (r) + ae_perm |= acl_inherit_map[i].archive_inherit; + } + } +#endif /* HAVE_ACL_TYPE_NFS4 || HAVE_DARWIN_ACL */ - acl_get_permset(acl_entry, &acl_permset); + if (acl_get_permset(acl_entry, &acl_permset) != 0) { + archive_set_error(&a->archive, errno, + "Failed to get ACL permission set"); + return (ARCHIVE_WARN); + } for (i = 0; i < (int)(sizeof(acl_perm_map) / sizeof(acl_perm_map[0])); ++i) { /* * acl_get_perm() is spelled differently on different * platforms; see above. */ - if (ACL_GET_PERM(acl_permset, acl_perm_map[i].platform_perm)) + r = ACL_GET_PERM(acl_permset, acl_perm_map[i].platform_perm); + if (r == -1) { + archive_set_error(&a->archive, errno, + "Failed to check permission in an ACL permission set"); + return (ARCHIVE_WARN); + } else if (r) ae_perm |= acl_perm_map[i].archive_perm; } @@ -666,10 +1377,18 @@ translate_acl(struct archive_read_disk *a, ae_id, ae_name); s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry); +#if !HAVE_DARWIN_ACL + if (s == -1) { + archive_set_error(&a->archive, errno, + "Failed to get next ACL entry"); + return (ARCHIVE_WARN); + } +#endif } return (ARCHIVE_OK); } -#else +#endif /* !HAVE_SUN_ACL */ +#else /* !HAVE_POSIX_ACL && !HAVE_NFS4_ACL */ static int setup_acls(struct archive_read_disk *a, struct archive_entry *entry, int *fd) @@ -679,7 +1398,7 @@ setup_acls(struct archive_read_disk *a, (void)fd; /* UNUSED */ return (ARCHIVE_OK); } -#endif +#endif /* !HAVE_POSIX_ACL && !HAVE_NFS4_ACL */ #if (HAVE_FGETXATTR && HAVE_FLISTXATTR && HAVE_LISTXATTR && \ HAVE_LLISTXATTR && HAVE_GETXATTR && HAVE_LGETXATTR) || \ @@ -699,15 +1418,10 @@ setup_acls(struct archive_read_disk *a, static int setup_xattr(struct archive_read_disk *a, - struct archive_entry *entry, const char *name, int fd) + struct archive_entry *entry, const char *name, int fd, const char *accpath) { ssize_t size; void *value = NULL; - const char *accpath; - - accpath = archive_entry_sourcepath(entry); - if (accpath == NULL) - accpath = archive_entry_pathname(entry); #if HAVE_FGETXATTR if (fd >= 0) @@ -772,21 +1486,23 @@ setup_xattrs(struct archive_read_disk *a, const char *path; ssize_t list_size; - path = archive_entry_sourcepath(entry); - if (path == NULL) - path = archive_entry_pathname(entry); + path = NULL; - if (*fd < 0 && a->tree != NULL) { - if (a->follow_symlinks || - archive_entry_filetype(entry) != AE_IFLNK) - *fd = a->open_on_current_dir(a->tree, path, - O_RDONLY | O_NONBLOCK); - if (*fd < 0) { - if (a->tree_enter_working_dir(a->tree) != 0) { - archive_set_error(&a->archive, errno, - "Couldn't access %s", path); - return (ARCHIVE_FAILED); - } + if (*fd < 0) { + path = archive_entry_sourcepath(entry); + if (path == NULL || (a->tree != NULL && + a->tree_enter_working_dir(a->tree) != 0)) + path = archive_entry_pathname(entry); + if (path == NULL) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Couldn't determine file path to read " + "extended attributes"); + return (ARCHIVE_WARN); + } + if (a->tree != NULL && (a->follow_symlinks || + archive_entry_filetype(entry) != AE_IFLNK)) { + *fd = a->open_on_current_dir(a->tree, + path, O_RDONLY | O_NONBLOCK); } } @@ -849,7 +1565,7 @@ setup_xattrs(struct archive_read_disk *a, if (strncmp(p, "system.", 7) == 0 || strncmp(p, "xfsroot.", 8) == 0) continue; - setup_xattr(a, entry, p, *fd); + setup_xattr(a, entry, p, *fd, path); } free(list); @@ -870,19 +1586,16 @@ setup_xattrs(struct archive_read_disk *a, */ static int setup_xattr(struct archive_read_disk *a, struct archive_entry *entry, - int namespace, const char *name, const char *fullname, int fd); + int namespace, const char *name, const char *fullname, int fd, + const char *path); static int setup_xattr(struct archive_read_disk *a, struct archive_entry *entry, - int namespace, const char *name, const char *fullname, int fd) + int namespace, const char *name, const char *fullname, int fd, + const char *accpath) { ssize_t size; void *value = NULL; - const char *accpath; - - accpath = archive_entry_sourcepath(entry); - if (accpath == NULL) - accpath = archive_entry_pathname(entry); if (fd >= 0) size = extattr_get_fd(fd, namespace, name, NULL, 0); @@ -932,21 +1645,23 @@ setup_xattrs(struct archive_read_disk *a, const char *path; int namespace = EXTATTR_NAMESPACE_USER; - path = archive_entry_sourcepath(entry); - if (path == NULL) - path = archive_entry_pathname(entry); + path = NULL; - if (*fd < 0 && a->tree != NULL) { - if (a->follow_symlinks || - archive_entry_filetype(entry) != AE_IFLNK) - *fd = a->open_on_current_dir(a->tree, path, - O_RDONLY | O_NONBLOCK); - if (*fd < 0) { - if (a->tree_enter_working_dir(a->tree) != 0) { - archive_set_error(&a->archive, errno, - "Couldn't access %s", path); - return (ARCHIVE_FAILED); - } + if (*fd < 0) { + path = archive_entry_sourcepath(entry); + if (path == NULL || (a->tree != NULL && + a->tree_enter_working_dir(a->tree) != 0)) + path = archive_entry_pathname(entry); + if (path == NULL) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Couldn't determine file path to read " + "extended attributes"); + return (ARCHIVE_WARN); + } + if (a->tree != NULL && (a->follow_symlinks || + archive_entry_filetype(entry) != AE_IFLNK)) { + *fd = a->open_on_current_dir(a->tree, + path, O_RDONLY | O_NONBLOCK); } } @@ -996,7 +1711,7 @@ setup_xattrs(struct archive_read_disk *a, name = buff + strlen(buff); memcpy(name, p + 1, len); name[len] = '\0'; - setup_xattr(a, entry, namespace, name, buff, *fd); + setup_xattr(a, entry, namespace, name, buff, *fd, path); p += 1 + len; } @@ -1024,7 +1739,7 @@ setup_xattrs(struct archive_read_disk *a, #if defined(HAVE_LINUX_FIEMAP_H) /* - * Linux sparse interface. + * Linux FIEMAP sparse interface. * * The FIEMAP ioctl returns an "extent" for each physical allocation * on disk. We need to process those to generate a more compact list @@ -1039,7 +1754,7 @@ setup_xattrs(struct archive_read_disk *a, */ static int -setup_sparse(struct archive_read_disk *a, +setup_sparse_fiemap(struct archive_read_disk *a, struct archive_entry *entry, int *fd) { char buff[4096]; @@ -1090,8 +1805,8 @@ setup_sparse(struct archive_read_disk *a, if (r < 0) { /* When something error happens, it is better we * should return ARCHIVE_OK because an earlier - * version(<2.6.28) cannot perfom FS_IOC_FIEMAP. */ - goto exit_setup_sparse; + * version(<2.6.28) cannot perform FS_IOC_FIEMAP. */ + goto exit_setup_sparse_fiemap; } if (fm->fm_mapped_extents == 0) { if (iters == 0) { @@ -1126,14 +1841,24 @@ setup_sparse(struct archive_read_disk *a, } else break; } -exit_setup_sparse: +exit_setup_sparse_fiemap: return (exit_sts); } -#elif defined(SEEK_HOLE) && defined(SEEK_DATA) && defined(_PC_MIN_HOLE_SIZE) +#if !defined(SEEK_HOLE) || !defined(SEEK_DATA) +static int +setup_sparse(struct archive_read_disk *a, + struct archive_entry *entry, int *fd) +{ + return setup_sparse_fiemap(a, entry, fd); +} +#endif +#endif /* defined(HAVE_LINUX_FIEMAP_H) */ + +#if defined(SEEK_HOLE) && defined(SEEK_DATA) /* - * FreeBSD and Solaris sparse interface. + * SEEK_HOLE sparse interface (FreeBSD, Linux, Solaris) */ static int @@ -1141,8 +1866,8 @@ setup_sparse(struct archive_read_disk *a, struct archive_entry *entry, int *fd) { int64_t size; - off_t initial_off; /* FreeBSD/Solaris only, so off_t okay here */ - off_t off_s, off_e; /* FreeBSD/Solaris only, so off_t okay here */ + off_t initial_off; + off_t off_s, off_e; int exit_sts = ARCHIVE_OK; int check_fully_sparse = 0; @@ -1168,8 +1893,10 @@ setup_sparse(struct archive_read_disk *a, } if (*fd >= 0) { +#ifdef _PC_MIN_HOLE_SIZE if (fpathconf(*fd, _PC_MIN_HOLE_SIZE) <= 0) return (ARCHIVE_OK); +#endif initial_off = lseek(*fd, 0, SEEK_CUR); if (initial_off != 0) lseek(*fd, 0, SEEK_SET); @@ -1180,8 +1907,10 @@ setup_sparse(struct archive_read_disk *a, if (path == NULL) path = archive_entry_pathname(entry); +#ifdef _PC_MIN_HOLE_SIZE if (pathconf(path, _PC_MIN_HOLE_SIZE) <= 0) return (ARCHIVE_OK); +#endif *fd = open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC); if (*fd < 0) { archive_set_error(&a->archive, errno, @@ -1192,6 +1921,19 @@ setup_sparse(struct archive_read_disk *a, initial_off = 0; } +#ifndef _PC_MIN_HOLE_SIZE + /* Check if the underlying filesystem supports seek hole */ + off_s = lseek(*fd, 0, SEEK_HOLE); + if (off_s < 0) +#if defined(HAVE_LINUX_FIEMAP_H) + return setup_sparse_fiemap(a, entry, fd); +#else + goto exit_setup_sparse; +#endif + else if (off_s > 0) + lseek(*fd, 0, SEEK_SET); +#endif + off_s = 0; size = archive_entry_size(entry); while (off_s < size) { @@ -1223,7 +1965,7 @@ setup_sparse(struct archive_read_disk *a, goto exit_setup_sparse; } if (off_s == 0 && off_e == size) - break;/* This is not spase. */ + break;/* This is not sparse. */ archive_entry_sparse_add_entry(entry, off_s, off_e - off_s); off_s = off_e; @@ -1241,7 +1983,7 @@ exit_setup_sparse: return (exit_sts); } -#else +#elif !defined(HAVE_LINUX_FIEMAP_H) /* * Generic (stub) sparse support. |