[hare-scsi-devel:auth.v13 7/9] drivers/nvme/target/fabrics-cmd-auth.c:20:30: sparse: sparse: invalid assignment: |=
From: kernel test robot
Date: Tue May 31 2022 - 01:52:51 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git auth.v13
head: a444c5289874c2a619b92858d240a7cf40c9874b
commit: 6752fbe0803cafd906b16e8c6ea667b5e5a60053 [7/9] nvmet: Implement basic In-Band Authentication
config: arm-randconfig-s032-20220531 (https://download.01.org/0day-ci/archive/20220531/202205311329.qL8gyR6R-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-14-g5a0004b5-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git/commit/?id=6752fbe0803cafd906b16e8c6ea667b5e5a60053
git remote add hare-scsi-devel https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git
git fetch --no-tags hare-scsi-devel auth.v13
git checkout 6752fbe0803cafd906b16e8c6ea667b5e5a60053
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/nvme/target/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
sparse warnings: (new ones prefixed by >>)
>> drivers/nvme/target/fabrics-cmd-auth.c:20:30: sparse: sparse: invalid assignment: |=
>> drivers/nvme/target/fabrics-cmd-auth.c:20:30: sparse: left side has type restricted __le32
>> drivers/nvme/target/fabrics-cmd-auth.c:20:30: sparse: right side has type int
>> drivers/nvme/target/fabrics-cmd-auth.c:92:22: sparse: sparse: cast to restricted __le32
>> drivers/nvme/target/fabrics-cmd-auth.c:92:22: sparse: sparse: cast from restricted __le16
vim +20 drivers/nvme/target/fabrics-cmd-auth.c
14
15 void nvmet_init_auth(struct nvmet_ctrl *ctrl, struct nvmet_req *req)
16 {
17 /* Initialize in-band authentication */
18 req->sq->authenticated = false;
19 req->sq->dhchap_step = NVME_AUTH_DHCHAP_MESSAGE_NEGOTIATE;
> 20 req->cqe->result.u32 |= 0x2 << 16;
21 }
22
23 static u16 nvmet_auth_negotiate(struct nvmet_req *req, void *d)
24 {
25 struct nvmet_ctrl *ctrl = req->sq->ctrl;
26 struct nvmf_auth_dhchap_negotiate_data *data = d;
27 int i, hash_id = 0, fallback_hash_id = 0, dhgid;
28
29 pr_debug("%s: ctrl %d qid %d: data sc_d %d napd %d authid %d halen %d dhlen %d\n",
30 __func__, ctrl->cntlid, req->sq->qid,
31 data->sc_c, data->napd, data->auth_protocol[0].dhchap.authid,
32 data->auth_protocol[0].dhchap.halen,
33 data->auth_protocol[0].dhchap.dhlen);
34 req->sq->dhchap_tid = le16_to_cpu(data->t_id);
35 if (data->sc_c)
36 return NVME_AUTH_DHCHAP_FAILURE_CONCAT_MISMATCH;
37
38 if (data->napd != 1)
39 return NVME_AUTH_DHCHAP_FAILURE_HASH_UNUSABLE;
40
41 if (data->auth_protocol[0].dhchap.authid !=
42 NVME_AUTH_DHCHAP_AUTH_ID)
43 return NVME_AUTH_DHCHAP_FAILURE_INCORRECT_PAYLOAD;
44
45 for (i = 0; i < data->auth_protocol[0].dhchap.halen; i++) {
46 u8 host_hmac_id = data->auth_protocol[0].dhchap.idlist[i];
47
48 if (!fallback_hash_id &&
49 nvme_auth_hmac_name(host_hmac_id))
50 fallback_hash_id = host_hmac_id;
51 if (ctrl->shash_id != host_hmac_id)
52 continue;
53 hash_id = ctrl->shash_id;
54 break;
55 }
56 if (hash_id == 0) {
57 if (fallback_hash_id == 0) {
58 pr_debug("%s: ctrl %d qid %d: no usable hash found\n",
59 __func__, ctrl->cntlid, req->sq->qid);
60 return NVME_AUTH_DHCHAP_FAILURE_HASH_UNUSABLE;
61 }
62 pr_debug("%s: ctrl %d qid %d: no usable hash found, falling back to %s\n",
63 __func__, ctrl->cntlid, req->sq->qid,
64 nvme_auth_hmac_name(fallback_hash_id));
65 ctrl->shash_id = fallback_hash_id;
66 }
67
68 dhgid = -1;
69 for (i = 0; i < data->auth_protocol[0].dhchap.dhlen; i++) {
70 int tmp_dhgid = data->auth_protocol[0].dhchap.idlist[i + 30];
71
72 if (tmp_dhgid == NVME_AUTH_DHGROUP_NULL) {
73 dhgid = tmp_dhgid;
74 break;
75 }
76 }
77 if (dhgid < 0) {
78 pr_debug("%s: ctrl %d qid %d: no usable DH group found\n",
79 __func__, ctrl->cntlid, req->sq->qid);
80 return NVME_AUTH_DHCHAP_FAILURE_DHGROUP_UNUSABLE;
81 }
82 pr_debug("%s: ctrl %d qid %d: selected DH group %s (%d)\n",
83 __func__, ctrl->cntlid, req->sq->qid,
84 nvme_auth_dhgroup_name(dhgid), dhgid);
85 return 0;
86 }
87
88 static u16 nvmet_auth_reply(struct nvmet_req *req, void *d)
89 {
90 struct nvmet_ctrl *ctrl = req->sq->ctrl;
91 struct nvmf_auth_dhchap_reply_data *data = d;
> 92 u32 dhvlen = le32_to_cpu(data->dhvlen);
93 u8 *response;
94
95 pr_debug("%s: ctrl %d qid %d: data hl %d cvalid %d dhvlen %u\n",
96 __func__, ctrl->cntlid, req->sq->qid,
97 data->hl, data->cvalid, dhvlen);
98
99 if (dhvlen) {
100 return NVME_AUTH_DHCHAP_FAILURE_INCORRECT_PAYLOAD;
101 }
102
103 response = kmalloc(data->hl, GFP_KERNEL);
104 if (!response)
105 return NVME_AUTH_DHCHAP_FAILURE_FAILED;
106
107 if (!ctrl->host_key) {
108 pr_warn("ctrl %d qid %d no host key\n",
109 ctrl->cntlid, req->sq->qid);
110 kfree(response);
111 return NVME_AUTH_DHCHAP_FAILURE_FAILED;
112 }
113 if (nvmet_auth_host_hash(req, response, data->hl) < 0) {
114 pr_debug("ctrl %d qid %d host hash failed\n",
115 ctrl->cntlid, req->sq->qid);
116 kfree(response);
117 return NVME_AUTH_DHCHAP_FAILURE_FAILED;
118 }
119
120 if (memcmp(data->rval, response, data->hl)) {
121 pr_info("ctrl %d qid %d host response mismatch\n",
122 ctrl->cntlid, req->sq->qid);
123 kfree(response);
124 return NVME_AUTH_DHCHAP_FAILURE_FAILED;
125 }
126 kfree(response);
127 pr_debug("%s: ctrl %d qid %d host authenticated\n",
128 __func__, ctrl->cntlid, req->sq->qid);
129 if (data->cvalid) {
130 req->sq->dhchap_c2 = kmalloc(data->hl, GFP_KERNEL);
131 if (!req->sq->dhchap_c2)
132 return NVME_AUTH_DHCHAP_FAILURE_FAILED;
133 memcpy(req->sq->dhchap_c2, data->rval + data->hl, data->hl);
134
135 pr_debug("%s: ctrl %d qid %d challenge %*ph\n",
136 __func__, ctrl->cntlid, req->sq->qid, data->hl,
137 req->sq->dhchap_c2);
138 req->sq->dhchap_s2 = le32_to_cpu(data->seqnum);
139 } else
140 req->sq->dhchap_c2 = NULL;
141
142 return 0;
143 }
144
--
0-DAY CI Kernel Test Service
https://01.org/lkp