summaryrefslogtreecommitdiffstats
path: root/fs/afs/misc.c
diff options
context:
space:
mode:
authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /fs/afs/misc.c
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'fs/afs/misc.c')
-rw-r--r--fs/afs/misc.c208
1 files changed, 208 insertions, 0 deletions
diff --git a/fs/afs/misc.c b/fs/afs/misc.c
new file mode 100644
index 000000000..c8a7f2660
--- /dev/null
+++ b/fs/afs/misc.c
@@ -0,0 +1,208 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* miscellaneous bits
+ *
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <crypto/krb5.h>
+#include "internal.h"
+#include "afs_fs.h"
+#include "protocol_uae.h"
+
+/*
+ * convert an AFS abort code to a Linux error number
+ */
+int afs_abort_to_error(u32 abort_code)
+{
+ switch (abort_code) {
+ /* Low errno codes inserted into abort namespace */
+ case 13: return -EACCES;
+ case 27: return -EFBIG;
+ case 30: return -EROFS;
+
+ /* VICE "special error" codes; 101 - 111 */
+ case VSALVAGE: return -EIO;
+ case VNOVNODE: return -ENOENT;
+ case VNOVOL: return -ENOMEDIUM;
+ case VVOLEXISTS: return -EEXIST;
+ case VNOSERVICE: return -EIO;
+ case VOFFLINE: return -ENOENT;
+ case VONLINE: return -EEXIST;
+ case VDISKFULL: return -ENOSPC;
+ case VOVERQUOTA: return -EDQUOT;
+ case VBUSY: return -EBUSY;
+ case VMOVED: return -ENXIO;
+
+ /* Volume Location server errors */
+ case AFSVL_IDEXIST: return -EEXIST;
+ case AFSVL_IO: return -EREMOTEIO;
+ case AFSVL_NAMEEXIST: return -EEXIST;
+ case AFSVL_CREATEFAIL: return -EREMOTEIO;
+ case AFSVL_NOENT: return -ENOMEDIUM;
+ case AFSVL_EMPTY: return -ENOMEDIUM;
+ case AFSVL_ENTDELETED: return -ENOMEDIUM;
+ case AFSVL_BADNAME: return -EINVAL;
+ case AFSVL_BADINDEX: return -EINVAL;
+ case AFSVL_BADVOLTYPE: return -EINVAL;
+ case AFSVL_BADSERVER: return -EINVAL;
+ case AFSVL_BADPARTITION: return -EINVAL;
+ case AFSVL_REPSFULL: return -EFBIG;
+ case AFSVL_NOREPSERVER: return -ENOENT;
+ case AFSVL_DUPREPSERVER: return -EEXIST;
+ case AFSVL_RWNOTFOUND: return -ENOENT;
+ case AFSVL_BADREFCOUNT: return -EINVAL;
+ case AFSVL_SIZEEXCEEDED: return -EINVAL;
+ case AFSVL_BADENTRY: return -EINVAL;
+ case AFSVL_BADVOLIDBUMP: return -EINVAL;
+ case AFSVL_IDALREADYHASHED: return -EINVAL;
+ case AFSVL_ENTRYLOCKED: return -EBUSY;
+ case AFSVL_BADVOLOPER: return -EBADRQC;
+ case AFSVL_BADRELLOCKTYPE: return -EINVAL;
+ case AFSVL_RERELEASE: return -EREMOTEIO;
+ case AFSVL_BADSERVERFLAG: return -EINVAL;
+ case AFSVL_PERM: return -EACCES;
+ case AFSVL_NOMEM: return -EREMOTEIO;
+
+ /* Unified AFS error table */
+ case UAEPERM: return -EPERM;
+ case UAENOENT: return -ENOENT;
+ case UAEAGAIN: return -EAGAIN;
+ case UAEACCES: return -EACCES;
+ case UAEBUSY: return -EBUSY;
+ case UAEEXIST: return -EEXIST;
+ case UAENOTDIR: return -ENOTDIR;
+ case UAEISDIR: return -EISDIR;
+ case UAEFBIG: return -EFBIG;
+ case UAENOSPC: return -ENOSPC;
+ case UAEROFS: return -EROFS;
+ case UAEMLINK: return -EMLINK;
+ case UAEDEADLK: return -EDEADLK;
+ case UAENAMETOOLONG: return -ENAMETOOLONG;
+ case UAENOLCK: return -ENOLCK;
+ case UAENOTEMPTY: return -ENOTEMPTY;
+ case UAELOOP: return -ELOOP;
+ case UAEOVERFLOW: return -EOVERFLOW;
+ case UAENOMEDIUM: return -ENOMEDIUM;
+ case UAEDQUOT: return -EDQUOT;
+
+ /* RXKAD abort codes; from include/rxrpc/packet.h. ET "RXK" == 0x1260B00 */
+ case RXKADINCONSISTENCY: return -EPROTO;
+ case RXKADPACKETSHORT: return -EPROTO;
+ case RXKADLEVELFAIL: return -EKEYREJECTED;
+ case RXKADTICKETLEN: return -EKEYREJECTED;
+ case RXKADOUTOFSEQUENCE: return -EPROTO;
+ case RXKADNOAUTH: return -EKEYREJECTED;
+ case RXKADBADKEY: return -EKEYREJECTED;
+ case RXKADBADTICKET: return -EKEYREJECTED;
+ case RXKADUNKNOWNKEY: return -EKEYREJECTED;
+ case RXKADEXPIRED: return -EKEYEXPIRED;
+ case RXKADSEALEDINCON: return -EKEYREJECTED;
+ case RXKADDATALEN: return -EKEYREJECTED;
+ case RXKADILLEGALLEVEL: return -EKEYREJECTED;
+
+ case RXGK_INCONSISTENCY: return -EPROTO;
+ case RXGK_PACKETSHORT: return -EPROTO;
+ case RXGK_BADCHALLENGE: return -EPROTO;
+ case RXGK_SEALEDINCON: return -EKEYREJECTED;
+ case RXGK_NOTAUTH: return -EKEYREJECTED;
+ case RXGK_EXPIRED: return -EKEYEXPIRED;
+ case RXGK_BADLEVEL: return -EKEYREJECTED;
+ case RXGK_BADKEYNO: return -EKEYREJECTED;
+ case RXGK_NOTRXGK: return -EKEYREJECTED;
+ case RXGK_UNSUPPORTED: return -EKEYREJECTED;
+ case RXGK_GSSERROR: return -EKEYREJECTED;
+#ifdef RXGK_BADETYPE
+ case RXGK_BADETYPE: return -ENOPKG;
+#endif
+#ifdef RXGK_BADTOKEN
+ case RXGK_BADTOKEN: return -EKEYREJECTED;
+#endif
+#ifdef RXGK_BADETYPE
+ case RXGK_DATALEN: return -EPROTO;
+#endif
+#ifdef RXGK_BADQOP
+ case RXGK_BADQOP: return -EKEYREJECTED;
+#endif
+
+ case KRB5_PROG_KEYTYPE_NOSUPP: return -ENOPKG;
+
+ case RXGEN_OPCODE: return -ENOTSUPP;
+ case RX_INVALID_OPERATION: return -ENOTSUPP;
+
+ default: return -EREMOTEIO;
+ }
+}
+
+/*
+ * Select the error to report from a set of errors.
+ */
+void afs_prioritise_error(struct afs_error *e, int error, u32 abort_code)
+{
+ switch (error) {
+ case 0:
+ e->aborted = false;
+ e->error = 0;
+ return;
+ default:
+ if (e->error == -ETIMEDOUT ||
+ e->error == -ETIME)
+ return;
+ fallthrough;
+ case -ETIMEDOUT:
+ case -ETIME:
+ if (e->error == -ENOMEM ||
+ e->error == -ENONET)
+ return;
+ fallthrough;
+ case -ENOMEM:
+ case -ENONET:
+ if (e->error == -ERFKILL)
+ return;
+ fallthrough;
+ case -ERFKILL:
+ if (e->error == -EADDRNOTAVAIL)
+ return;
+ fallthrough;
+ case -EADDRNOTAVAIL:
+ if (e->error == -ENETUNREACH)
+ return;
+ fallthrough;
+ case -ENETUNREACH:
+ if (e->error == -EHOSTUNREACH)
+ return;
+ fallthrough;
+ case -EHOSTUNREACH:
+ if (e->error == -EHOSTDOWN)
+ return;
+ fallthrough;
+ case -EHOSTDOWN:
+ if (e->error == -ECONNREFUSED)
+ return;
+ fallthrough;
+ case -ECONNREFUSED:
+ if (e->error == -ECONNRESET)
+ return;
+ fallthrough;
+ case -ECONNRESET: /* Responded, but call expired. */
+ if (e->responded)
+ return;
+ e->error = error;
+ e->aborted = false;
+ return;
+
+ case -ECONNABORTED:
+ e->error = afs_abort_to_error(abort_code);
+ e->aborted = true;
+ e->responded = true;
+ return;
+ case -ENETRESET: /* Responded, but we seem to have changed address */
+ e->aborted = false;
+ e->responded = true;
+ e->error = error;
+ return;
+ }
+}