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| author | Baolin Wang <baolin.wang@linaro.org> | 2017-08-29 11:15:40 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-08-29 11:16:00 +0200 |
| commit | 10674a03c633379fadb5b314abde975fba270058 (patch) | |
| tree | 3f690f5c6e27d682bb590d52bc09ce41920b9100 /net/rxrpc/key.c | |
| parent | hinic: don't build the module by default (diff) | |
| download | linux-10674a03c633379fadb5b314abde975fba270058.tar.xz linux-10674a03c633379fadb5b314abde975fba270058.zip | |
net: rxrpc: Replace time_t type with time64_t type
Since the 'expiry' variable of 'struct key_preparsed_payload' has been
changed to 'time64_t' type, which is year 2038 safe on 32bits system.
In net/rxrpc subsystem, we need convert 'u32' type to 'time64_t' type
when copying ticket expires time to 'prep->expiry', then this patch
introduces two helper functions to help convert 'u32' to 'time64_t'
type.
This patch also uses ktime_get_real_seconds() to get current time instead
of get_seconds() which is not year 2038 safe on 32bits system.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/key.c')
| -rw-r--r-- | net/rxrpc/key.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c index 54369225766e..e2d36619b53a 100644 --- a/net/rxrpc/key.c +++ b/net/rxrpc/key.c @@ -92,6 +92,7 @@ static int rxrpc_preparse_xdr_rxkad(struct key_preparsed_payload *prep, const __be32 *xdr, unsigned int toklen) { struct rxrpc_key_token *token, **pptoken; + time64_t expiry; size_t plen; u32 tktlen; @@ -158,8 +159,9 @@ static int rxrpc_preparse_xdr_rxkad(struct key_preparsed_payload *prep, pptoken = &(*pptoken)->next) continue; *pptoken = token; - if (token->kad->expiry < prep->expiry) - prep->expiry = token->kad->expiry; + expiry = rxrpc_u32_to_time64(token->kad->expiry); + if (expiry < prep->expiry) + prep->expiry = expiry; _leave(" = 0"); return 0; @@ -433,6 +435,7 @@ static int rxrpc_preparse_xdr_rxk5(struct key_preparsed_payload *prep, struct rxrpc_key_token *token, **pptoken; struct rxk5_key *rxk5; const __be32 *end_xdr = xdr + (toklen >> 2); + time64_t expiry; int ret; _enter(",{%x,%x,%x,%x},%u", @@ -533,8 +536,9 @@ static int rxrpc_preparse_xdr_rxk5(struct key_preparsed_payload *prep, pptoken = &(*pptoken)->next) continue; *pptoken = token; - if (token->kad->expiry < prep->expiry) - prep->expiry = token->kad->expiry; + expiry = rxrpc_u32_to_time64(token->kad->expiry); + if (expiry < prep->expiry) + prep->expiry = expiry; _leave(" = 0"); return 0; @@ -691,6 +695,7 @@ static int rxrpc_preparse(struct key_preparsed_payload *prep) { const struct rxrpc_key_data_v1 *v1; struct rxrpc_key_token *token, **pp; + time64_t expiry; size_t plen; u32 kver; int ret; @@ -777,8 +782,9 @@ static int rxrpc_preparse(struct key_preparsed_payload *prep) while (*pp) pp = &(*pp)->next; *pp = token; - if (token->kad->expiry < prep->expiry) - prep->expiry = token->kad->expiry; + expiry = rxrpc_u32_to_time64(token->kad->expiry); + if (expiry < prep->expiry) + prep->expiry = expiry; token = NULL; ret = 0; @@ -955,7 +961,7 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval, */ int rxrpc_get_server_data_key(struct rxrpc_connection *conn, const void *session_key, - time_t expiry, + time64_t expiry, u32 kvno) { const struct cred *cred = current_cred(); @@ -982,7 +988,7 @@ int rxrpc_get_server_data_key(struct rxrpc_connection *conn, data.kver = 1; data.v1.security_index = RXRPC_SECURITY_RXKAD; data.v1.ticket_length = 0; - data.v1.expiry = expiry; + data.v1.expiry = rxrpc_time64_to_u32(expiry); data.v1.kvno = 0; memcpy(&data.v1.session_key, session_key, sizeof(data.v1.session_key)); |