diff options
| -rw-r--r-- | src/core/ima-setup.c | 39 |
1 files changed, 17 insertions, 22 deletions
diff --git a/src/core/ima-setup.c b/src/core/ima-setup.c index 4d8b638115..42a3e97459 100644 --- a/src/core/ima-setup.c +++ b/src/core/ima-setup.c @@ -23,9 +23,6 @@ #include <unistd.h> #include <errno.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <sys/mman.h> #include "ima-setup.h" #include "util.h" @@ -36,20 +33,19 @@ #define IMA_POLICY_PATH "/etc/ima/ima-policy" int ima_setup(void) { - int r = 0; - #ifdef HAVE_IMA - _cleanup_close_ int policyfd = -1, imafd = -1; - struct stat st; - char *policy; + _cleanup_fclose_ FILE *input = NULL; + _cleanup_close_ int imafd = -1; + unsigned lineno = 0; + char line[page_size()]; if (access(IMA_SECFS_DIR, F_OK) < 0) { log_debug("IMA support is disabled in the kernel, ignoring."); return 0; } - policyfd = open(IMA_POLICY_PATH, O_RDONLY|O_CLOEXEC); - if (policyfd < 0) { + input = fopen(IMA_POLICY_PATH, "re"); + if (!input) { log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, errno, "Failed to open the IMA custom policy file "IMA_POLICY_PATH", ignoring: %m"); return 0; @@ -66,20 +62,19 @@ int ima_setup(void) { return 0; } - if (fstat(policyfd, &st) < 0) - return log_error_errno(errno, "Failed to fstat "IMA_POLICY_PATH": %m"); + FOREACH_LINE(line, input, + return log_error_errno(errno, "Failed to read the IMA custom policy file "IMA_POLICY_PATH": %m")) { + size_t len; - policy = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, policyfd, 0); - if (policy == MAP_FAILED) - return log_error_errno(errno, "Failed to mmap "IMA_POLICY_PATH": %m"); + len = strlen(line); + lineno++; - r = loop_write(imafd, policy, (size_t) st.st_size, false); - if (r < 0) - log_error_errno(r, "Failed to load the IMA custom policy file "IMA_POLICY_PATH": %m"); - else - log_info("Successfully loaded the IMA custom policy "IMA_POLICY_PATH"."); + if (len > 0 && write(imafd, line, len) < 0) + return log_error_errno(errno, "Failed to load the IMA custom policy file "IMA_POLICY_PATH"%u: %m", + lineno); + } - munmap(policy, st.st_size); + log_info("Successfully loaded the IMA custom policy "IMA_POLICY_PATH"."); #endif /* HAVE_IMA */ - return r; + return 0; } |