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| author | Mark Johnston <markj@FreeBSD.org> | 2019-08-01 18:56:32 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2019-08-01 18:56:32 +0000 |
| commit | 1d954fed61a0fd99ac40a401764b23e188610d4e (patch) | |
| tree | 6200088c1ab96fc55b60384d7fea7ac647502e16 /contrib | |
| parent | 9a9b8e469325a7157d2714d150798acec1aadd1a (diff) | |
| download | src-1d954fed61a0fd99ac40a401764b23e188610d4e.tar.gz src-1d954fed61a0fd99ac40a401764b23e188610d4e.zip | |
Capsicumize addr2line(1).
Reviewed by: oshogbo
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21104
Notes
Notes:
svn path=/head/; revision=350515
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/elftoolchain/addr2line/addr2line.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/contrib/elftoolchain/addr2line/addr2line.c b/contrib/elftoolchain/addr2line/addr2line.c index 619214fb0fae..24ece6c11f57 100644 --- a/contrib/elftoolchain/addr2line/addr2line.c +++ b/contrib/elftoolchain/addr2line/addr2line.c @@ -25,6 +25,8 @@ */ #include <sys/param.h> + +#include <capsicum_helpers.h> #include <dwarf.h> #include <err.h> #include <fcntl.h> @@ -649,6 +651,7 @@ find_section_base(const char *exe, Elf *e, const char *section) int main(int argc, char **argv) { + cap_rights_t rights; Elf *e; Dwarf_Debug dbg; Dwarf_Error de; @@ -706,6 +709,16 @@ main(int argc, char **argv) if ((fd = open(exe, O_RDONLY)) < 0) err(EXIT_FAILURE, "%s", exe); + if (caph_rights_limit(fd, cap_rights_init(&rights, CAP_FSTAT, + CAP_MMAP_R)) < 0) + errx(EXIT_FAILURE, "caph_rights_limit"); + + caph_cache_catpages(); + if (caph_limit_stdio() < 0) + errx(EXIT_FAILURE, "failed to limit stdio rights"); + if (caph_enter() < 0) + errx(EXIT_FAILURE, "failed to enter capability mode"); + if (dwarf_init(fd, DW_DLC_READ, NULL, NULL, &dbg, &de)) errx(EXIT_FAILURE, "dwarf_init: %s", dwarf_errmsg(de)); |