diff options
| author | Ed Schouten <ed@FreeBSD.org> | 2015-08-01 07:51:48 +0000 |
|---|---|---|
| committer | Ed Schouten <ed@FreeBSD.org> | 2015-08-01 07:51:48 +0000 |
| commit | f52c3dd41595ae691afa68a2689918b690e11c56 (patch) | |
| tree | 31b8822e2eeb93dacd36c5a2cf8810d8525d1227 /sys/compat | |
| parent | 7ee1b208c3c90fd336878d38b7237d7c92710f24 (diff) | |
| download | src-f52c3dd41595ae691afa68a2689918b690e11c56.tar.gz src-f52c3dd41595ae691afa68a2689918b690e11c56.zip | |
Allow CloudABI processes to create shared memory objects.
Summary:
Use the newly created `kern_shm_open()` function to create objects with
just the rights that are actually needed.
Reviewers: jhb, kib
Subscribers: imp
Differential Revision: https://reviews.freebsd.org/D3260
Notes
Notes:
svn path=/head/; revision=286147
Diffstat (limited to 'sys/compat')
| -rw-r--r-- | sys/compat/cloudabi/cloudabi_fd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/compat/cloudabi/cloudabi_fd.c b/sys/compat/cloudabi/cloudabi_fd.c index 5a58cb312d98..d2004a9e27d1 100644 --- a/sys/compat/cloudabi/cloudabi_fd.c +++ b/sys/compat/cloudabi/cloudabi_fd.c @@ -30,6 +30,7 @@ __FBSDID("$FreeBSD$"); #include <sys/capsicum.h> #include <sys/filedesc.h> #include <sys/proc.h> +#include <sys/mman.h> #include <sys/socketvar.h> #include <sys/syscallsubr.h> #include <sys/sysproto.h> @@ -97,11 +98,16 @@ int cloudabi_sys_fd_create1(struct thread *td, struct cloudabi_sys_fd_create1_args *uap) { + struct filecaps fcaps = {}; struct socket_args socket_args = { .domain = AF_UNIX, }; switch (uap->type) { + case CLOUDABI_FILETYPE_SHARED_MEMORY: + cap_rights_init(&fcaps.fc_rights, CAP_FSTAT, CAP_FTRUNCATE, + CAP_MMAP_RWX); + return (kern_shm_open(td, SHM_ANON, O_RDWR, 0, &fcaps)); case CLOUDABI_FILETYPE_SOCKET_DGRAM: socket_args.type = SOCK_DGRAM; return (sys_socket(td, &socket_args)); |