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| author | Len Brown <len.brown@intel.com> | 2011-03-23 02:33:54 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-03-23 02:33:54 -0400 |
| commit | 5c129a8600100a5d0f5fdbc1014c5dba1d307bc4 (patch) | |
| tree | 9877a14b49cff43d0ba10c12f407ec551c77daa5 /net/dns_resolver/dns_key.c | |
| parent | 797b10a07069e153d41aedb4ae8e76660279e2ee (diff) | |
| parent | 521cb40b0c44418a4fd36dc633f575813d59a43d (diff) | |
| download | talos-op-linux-5c129a8600100a5d0f5fdbc1014c5dba1d307bc4.tar.gz talos-op-linux-5c129a8600100a5d0f5fdbc1014c5dba1d307bc4.zip | |
Merge commit 'v2.6.38' into release
Diffstat (limited to 'net/dns_resolver/dns_key.c')
| -rw-r--r-- | net/dns_resolver/dns_key.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c index 739435a6af39..cfa7a5e1c5c9 100644 --- a/net/dns_resolver/dns_key.c +++ b/net/dns_resolver/dns_key.c @@ -67,8 +67,9 @@ dns_resolver_instantiate(struct key *key, const void *_data, size_t datalen) size_t result_len = 0; const char *data = _data, *end, *opt; - kenter("%%%d,%s,'%s',%zu", - key->serial, key->description, data, datalen); + kenter("%%%d,%s,'%*.*s',%zu", + key->serial, key->description, + (int)datalen, (int)datalen, data, datalen); if (datalen <= 1 || !data || data[datalen - 1] != '\0') return -EINVAL; @@ -217,6 +218,19 @@ static void dns_resolver_describe(const struct key *key, struct seq_file *m) seq_printf(m, ": %u", key->datalen); } +/* + * read the DNS data + * - the key's semaphore is read-locked + */ +static long dns_resolver_read(const struct key *key, + char __user *buffer, size_t buflen) +{ + if (key->type_data.x[0]) + return key->type_data.x[0]; + + return user_read(key, buffer, buflen); +} + struct key_type key_type_dns_resolver = { .name = "dns_resolver", .instantiate = dns_resolver_instantiate, @@ -224,7 +238,7 @@ struct key_type key_type_dns_resolver = { .revoke = user_revoke, .destroy = user_destroy, .describe = dns_resolver_describe, - .read = user_read, + .read = dns_resolver_read, }; static int __init init_dns_resolver(void) |
