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Prevent to initialise backends twice.

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git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@414 36d66b0a-2a48-0410-832c-cd162a569da5
This commit is contained in:
Milan Broz
2011-01-16 10:38:55 +00:00
parent 9da29e8759
commit f48c312fc7
6 changed files with 43 additions and 5 deletions
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7
lib/crypto_backend/crypto_kernel.c
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@@ -33,6 +33,8 @@
#define SOL_ALG 279
#endif
static int crypto_backend_initialised = 0;
struct hash_alg {
const char *name;
const char *kernel_name;
@@ -97,6 +99,9 @@ int crypt_backend_init(void)
};
int tfmfd = -1, opfd = -1;
if (crypto_backend_initialised)
return 0;
log_dbg("Initialising kernel crypto API backend.");
if (uname(&uts) == -1 || strcmp(uts.sysname, "Linux"))
@@ -108,6 +113,8 @@ int crypt_backend_init(void)
close(tfmfd);
close(opfd);
crypto_backend_initialised = 1;
return 0;
}