From 6521f30273fbec65146a0f16de74b7b402b0f7b0 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 6 Aug 2006 20:28:44 +1000 Subject: [CRYPTO] api: Add crypto_alg reference counting Up until now we've relied on module reference counting to ensure that the crypto_alg structures don't disappear from under us. This was good enough as long as each crypto_alg came from exactly one module. However, with parameterised crypto algorithms a crypto_alg object may need two or more modules to operate. This means that we need to count the references to the crypto_alg object directly. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- crypto/proc.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'crypto/proc.c') diff --git a/crypto/proc.c b/crypto/proc.c index c0a5dd7ce2cc..8543b7a157d6 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -12,6 +12,8 @@ * any later version. * */ + +#include #include #include #include @@ -54,6 +56,7 @@ static int c_show(struct seq_file *m, void *p) seq_printf(m, "driver : %s\n", alg->cra_driver_name); seq_printf(m, "module : %s\n", module_name(alg->cra_module)); seq_printf(m, "priority : %d\n", alg->cra_priority); + seq_printf(m, "refcnt : %d\n", atomic_read(&alg->cra_refcnt)); switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) { case CRYPTO_ALG_TYPE_CIPHER: -- cgit v1.2.3 From cce9e06d100df19a327b19f23adad76e7bf63edd Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 21 Aug 2006 21:08:13 +1000 Subject: [CRYPTO] api: Split out low-level API The crypto API is made up of the part facing users such as IPsec and the low-level part which is used by cryptographic entities such as algorithms. This patch splits out the latter so that the two APIs are more clearly delineated. As a bonus the low-level API can now be modularised if all algorithms are built as modules. Signed-off-by: Herbert Xu --- crypto/proc.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'crypto/proc.c') diff --git a/crypto/proc.c b/crypto/proc.c index 8543b7a157d6..9e573b17e887 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -113,3 +113,8 @@ void __init crypto_init_proc(void) if (proc) proc->proc_fops = &proc_crypto_ops; } + +void __exit crypto_exit_proc(void) +{ + remove_proc_entry("crypto", NULL); +} -- cgit v1.2.3 From e853c3cfa8cc24869ecd2526e589bcb176bc12e9 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 22 Aug 2006 00:06:54 +1000 Subject: [CRYPTO] api: Added crypto_type support This patch adds the crypto_type structure which will be used for all new crypto algorithm types, beginning with block ciphers. The primary purpose of this abstraction is to allow different crypto_type objects for crypto algorithms of the same type, in particular, there will be a different crypto_type objects for asynchronous algorithms. Signed-off-by: Herbert Xu --- crypto/proc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'crypto/proc.c') diff --git a/crypto/proc.c b/crypto/proc.c index 9e573b17e887..dabce0676f63 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -78,7 +78,10 @@ static int c_show(struct seq_file *m, void *p) seq_printf(m, "type : compression\n"); break; default: - seq_printf(m, "type : unknown\n"); + if (alg->cra_type && alg->cra_type->show) + alg->cra_type->show(m, alg); + else + seq_printf(m, "type : unknown\n"); break; } -- cgit v1.2.3