diff -up patch-2.7.6/src/common.h.selinux patch-2.7.6/src/common.h --- patch-2.7.6/src/common.h.selinux 2018-02-03 12:41:49.000000000 +0000 +++ patch-2.7.6/src/common.h 2018-02-12 12:29:44.415225377 +0000 @@ -30,6 +30,8 @@ #include #include +#include + #include #include @@ -84,6 +86,7 @@ XTERN char *outfile; XTERN int inerrno; XTERN int invc; XTERN struct stat instat; +XTERN security_context_t incontext; XTERN bool dry_run; XTERN bool posixly_correct; diff -up patch-2.7.6/src/inp.c.selinux patch-2.7.6/src/inp.c --- patch-2.7.6/src/inp.c.selinux 2017-09-04 12:34:16.000000000 +0100 +++ patch-2.7.6/src/inp.c 2018-02-12 12:29:44.415225377 +0000 @@ -145,7 +145,7 @@ get_input_file (char const *filename, ch char *getbuf; if (inerrno == -1) - inerrno = stat_file (filename, &instat); + inerrno = stat_file (filename, &instat, &incontext); /* Perhaps look for RCS or SCCS versions. */ if (S_ISREG (file_type) @@ -190,7 +190,7 @@ get_input_file (char const *filename, ch } if (cs && version_get (filename, cs, ! inerrno, elsewhere, getbuf, - &instat)) + &instat, &incontext)) inerrno = 0; free (getbuf); @@ -201,6 +201,7 @@ get_input_file (char const *filename, ch { instat.st_mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH; instat.st_size = 0; + incontext = NULL; } else if (! ((S_ISREG (file_type) || S_ISLNK (file_type)) && (file_type & S_IFMT) == (instat.st_mode & S_IFMT))) diff -up patch-2.7.6/src/Makefile.am.selinux patch-2.7.6/src/Makefile.am --- patch-2.7.6/src/Makefile.am.selinux 2017-09-04 12:34:16.000000000 +0100 +++ patch-2.7.6/src/Makefile.am 2018-02-12 12:29:44.415225377 +0000 @@ -37,7 +37,7 @@ patch_SOURCES = \ AM_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib patch_LDADD = $(LDADD) $(top_builddir)/lib/libpatch.a $(LIB_CLOCK_GETTIME) \ - $(LIB_XATTR) $(LIB_EACCESS) + $(LIB_XATTR) $(LIB_EACCESS) -lselinux if ENABLE_MERGE patch_SOURCES += merge.c diff -up patch-2.7.6/src/Makefile.in.selinux patch-2.7.6/src/Makefile.in --- patch-2.7.6/src/Makefile.in.selinux 2018-02-03 13:33:56.000000000 +0000 +++ patch-2.7.6/src/Makefile.in 2018-02-12 12:29:44.415225377 +0000 @@ -1147,7 +1147,7 @@ patch_SOURCES = bestmatch.h common.h inp AM_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib \ $(am__append_2) patch_LDADD = $(LDADD) $(top_builddir)/lib/libpatch.a $(LIB_CLOCK_GETTIME) \ - $(LIB_XATTR) $(LIB_EACCESS) + $(LIB_XATTR) $(LIB_EACCESS) -lselinux all: all-am diff -up patch-2.7.6/src/patch.c.selinux patch-2.7.6/src/patch.c --- patch-2.7.6/src/patch.c.selinux 2018-02-03 12:41:49.000000000 +0000 +++ patch-2.7.6/src/patch.c 2018-02-12 12:30:27.315164138 +0000 @@ -269,19 +269,19 @@ main (int argc, char **argv) if (! strcmp (inname, outname)) { if (inerrno == -1) - inerrno = stat_file (inname, &instat); + inerrno = stat_file (inname, &instat, NULL); outstat = instat; outerrno = inerrno; } else - outerrno = stat_file (outname, &outstat); + outerrno = stat_file (outname, &outstat, NULL); if (! outerrno) { if (has_queued_output (&outstat)) { output_files (&outstat); - outerrno = stat_file (outname, &outstat); + outerrno = stat_file (outname, &outstat, NULL); inerrno = -1; } if (! outerrno) @@ -598,7 +598,7 @@ main (int argc, char **argv) } else { - attr |= FA_IDS | FA_MODE | FA_XATTRS; + attr |= FA_IDS | FA_MODE | FA_XATTRS | FA_SECCONTEXT; set_file_attributes (TMPOUTNAME, attr, inname, &instat, mode, &new_time); } @@ -658,7 +658,7 @@ main (int argc, char **argv) struct stat oldst; int olderrno; - olderrno = stat_file (rej, &oldst); + olderrno = stat_file (rej, &oldst, NULL); if (olderrno && olderrno != ENOENT) write_fatal (); if (! olderrno && lookup_file_id (&oldst) == CREATED) @@ -1790,7 +1790,7 @@ delete_file_later (const char *name, con if (! st) { - if (stat_file (name, &st_tmp) != 0) + if (stat_file (name, &st_tmp, NULL) != 0) pfatal ("Can't get file attributes of %s %s", "file", name); st = &st_tmp; } diff -up patch-2.7.6/src/pch.c.selinux patch-2.7.6/src/pch.c --- patch-2.7.6/src/pch.c.selinux 2018-02-03 12:41:49.000000000 +0000 +++ patch-2.7.6/src/pch.c 2018-02-12 12:29:44.416225375 +0000 @@ -1,6 +1,6 @@ /* reading patches */ -/* Copyright (C) 1986, 1987, 1988 Larry Wall +/* Copyright (C) 1986, 1987, 1988, 2012 Larry Wall Copyright (C) 1990-1993, 1997-2003, 2006, 2009-2012 Free Software Foundation, Inc. @@ -296,7 +296,7 @@ there_is_another_patch (bool need_header if (t > buf + 1 && *(t - 1) == '\n') { inname = xmemdup0 (buf, t - buf - 1); - inerrno = stat_file (inname, &instat); + inerrno = stat_file (inname, &instat, &incontext); if (inerrno) { perror (inname); @@ -433,6 +433,7 @@ intuit_diff_type (bool need_header, mode bool extended_headers = false; enum nametype i; struct stat st[3]; + security_context_t con[3]; int stat_errno[3]; int version_controlled[3]; enum diff retval; @@ -473,6 +474,7 @@ intuit_diff_type (bool need_header, mode version_controlled[OLD] = -1; version_controlled[NEW] = -1; version_controlled[INDEX] = -1; + con[OLD] = con[NEW] = con[INDEX] = NULL; p_rfc934_nesting = 0; p_timestamp[OLD].tv_sec = p_timestamp[NEW].tv_sec = -1; p_says_nonexistent[OLD] = p_says_nonexistent[NEW] = 0; @@ -883,7 +885,7 @@ intuit_diff_type (bool need_header, mode } else { - stat_errno[i] = stat_file (p_name[i], &st[i]); + stat_errno[i] = stat_file (p_name[i], &st[i], &con[i]); if (! stat_errno[i]) { if (lookup_file_id (&st[i]) == DELETE_LATER) @@ -922,7 +924,7 @@ intuit_diff_type (bool need_header, mode if (cs) { if (version_get (p_name[i], cs, false, readonly, - getbuf, &st[i])) + getbuf, &st[i], &con[i])) stat_errno[i] = 0; else version_controlled[i] = 0; @@ -985,7 +987,7 @@ intuit_diff_type (bool need_header, mode { if (inname) { - inerrno = stat_file (inname, &instat); + inerrno = stat_file (inname, &instat, &incontext); if (inerrno || (instat.st_mode & S_IFMT) == file_type) maybe_reverse (inname, inerrno, inerrno || instat.st_size == 0); } @@ -998,8 +1000,14 @@ intuit_diff_type (bool need_header, mode inerrno = stat_errno[i]; invc = version_controlled[i]; instat = st[i]; + incontext = con[i]; + con[i] = NULL; } + for (i = OLD; i <= INDEX; i++) + if (con[i]) + freecon (con[i]); + return retval; } diff -up patch-2.7.6/src/util.c.selinux patch-2.7.6/src/util.c --- patch-2.7.6/src/util.c.selinux 2018-02-03 12:41:49.000000000 +0000 +++ patch-2.7.6/src/util.c 2018-02-12 12:29:44.417225374 +0000 @@ -300,6 +300,23 @@ set_file_attributes (char const *to, enu S_ISLNK (mode) ? "symbolic link" : "file", quotearg (to)); } + if (attr & FA_SECCONTEXT) + { + security_context_t outcontext; + if (incontext && getfilecon (to, &outcontext) != -1 && outcontext) + { + if (strcmp (outcontext, incontext) && + setfilecon (to, incontext) != 0) + { + freecon (outcontext); + if (errno != ENOTSUP && errno != EPERM) + pfatal ("Can't set security context on file %s", + quotearg (to)); + } + else + freecon (outcontext); + } + } } static void @@ -446,7 +463,7 @@ move_file (char const *from, bool *from_ struct stat to_st; int to_errno; - to_errno = stat_file (to, &to_st); + to_errno = stat_file (to, &to_st, NULL); if (backup) create_backup (to, to_errno ? NULL : &to_st, false); if (! to_errno) @@ -818,7 +835,8 @@ version_controller (char const *filename Return true if successful. */ bool version_get (char const *filename, char const *cs, bool exists, bool readonly, - char const *getbuf, struct stat *filestat) + char const *getbuf, struct stat *filestat, + security_context_t *filecontext) { if (patch_get < 0) { @@ -843,6 +861,13 @@ version_get (char const *filename, char fatal ("Can't get file %s from %s", quotearg (filename), cs); if (safe_stat (filename, filestat) != 0) pfatal ("%s", quotearg (filename)); + if (filecontext && getfilecon (filename, filecontext) == -1) + { + if (errno == ENODATA || errno == ENOTSUP) + *filecontext = NULL; + else + pfatal ("%s", quotearg (filename)); + } } return 1; @@ -1670,12 +1695,28 @@ make_tempfile (char const **name, char l return fd; } -int stat_file (char const *filename, struct stat *st) +int stat_file (char const *filename, struct stat *st, security_context_t *con) { int (*xstat)(char const *, struct stat *) = follow_symlinks ? safe_stat : safe_lstat; + int (*xgetfilecon)(char const *, security_context_t *) = + follow_symlinks ? getfilecon : lgetfilecon; + + if (xstat (filename, st) == 0) + { + if (con) + { + if (xgetfilecon (filename, con) != -1 || + errno == ENODATA || errno == ENOTSUP) + return 0; - return xstat (filename, st) == 0 ? 0 : errno; + *con = NULL; + } + else + return 0; + } + + return errno; } /* Check if a filename is relative and free of ".." components. diff -up patch-2.7.6/src/util.h.selinux patch-2.7.6/src/util.h --- patch-2.7.6/src/util.h.selinux 2018-02-03 12:41:49.000000000 +0000 +++ patch-2.7.6/src/util.h 2018-02-12 12:30:08.533190949 +0000 @@ -44,7 +44,7 @@ char *parse_name (char const *, int, cha char *savebuf (char const *, size_t); char *savestr (char const *); char const *version_controller (char const *, bool, struct stat const *, char **, char **); -bool version_get (char const *, char const *, bool, bool, char const *, struct stat *); +bool version_get (char const *, char const *, bool, bool, char const *, struct stat *, security_context_t *); int create_file (char const *, int, mode_t, bool); int systemic (char const *); char *format_linenum (char[LINENUM_LENGTH_BOUND + 1], lin); @@ -67,7 +67,7 @@ void insert_file_id (struct stat const * enum file_id_type lookup_file_id (struct stat const *); void set_queued_output (struct stat const *, bool); bool has_queued_output (struct stat const *); -int stat_file (char const *, struct stat *); +int stat_file (char const *, struct stat *, security_context_t *); bool filename_is_safe (char const *) _GL_ATTRIBUTE_PURE; bool cwd_is_root (char const *); @@ -75,7 +75,8 @@ enum file_attributes { FA_TIMES = 1, FA_IDS = 2, FA_MODE = 4, - FA_XATTRS = 8 + FA_XATTRS = 8, + FA_SECCONTEXT = 16 }; void set_file_attributes (char const *, enum file_attributes, char const *,